1. They are mechanical and chemical.
http://wiki.answers.com/Q/What_are_the_two_parts_of_digestion&isLookUp=1
2. Mechanical digestion is when you hve to do something to digest your food for yourself like chewing but chemical digestion is when a chemical called hydrochloric acid breaks down your food. http://wiki.answers.com/Q/What_is_the_difference_between_mechanical_digestion_and_chemical_digestion#ixzz16btmgJUm
3. This means they can't do mechanical digestions so the chemical digestion has to work harder.
4. mounth=7pH, stomach acid=1.5pH, small intestine=7
http://wiki.answers.com/Q/What_is_the_ph_in_your_mouth&isLookUp=1
http://wiki.answers.com/Q/What_is_the_pH_of_the_stomach
http://wiki.answers.com/Q/What_is_the_Ph_of_the_small_intestine&isLookUp=1
5. The different enzymes work better at different pHs.
http://wiki.answers.com/Q/How_is_pH_important_during_digestion&alreadyAsked=1&rtitle=Why_are_pH_variations_in_different_parts_of_the_digestive_system_important_to_the_process_of_digestion&isLookUp=1
Sunday, November 28, 2010
Objective 4:
1. H+
http://wiki.answers.com/Q/What_ion_is_present_in_all_acidic_solutions
2. The acids make hydrogen ions and the bases make hydroxide ions.
http://wiki.answers.com/Q/What_happens_when_acids_and_bases_dissolve_in_water
3. It ends up breaking down into H+ NO3 which is an acid.
http://answers.yahoo.com/question/index?qid=20080108190009AA0Uied
4. The pH tells you how much H+ ions that are inside of a certain acid or base. If the pH is lower than 7 it is an acid and if it is higher it is a base.
(remembered this from the question on objective 3)
5. The concentration of hydrogen is pretty high when the pH is low which means the pH of 3 has more hydrogen ions than the pH of 7.
http://wiki.answers.com/Q/What_solution_has_a_greater_concentration_of_hydrogen_ions_a_solution_with_a_pH_of_3_of_a_pH_of_7_Explain
http://wiki.answers.com/Q/What_ion_is_present_in_all_acidic_solutions
2. The acids make hydrogen ions and the bases make hydroxide ions.
http://wiki.answers.com/Q/What_happens_when_acids_and_bases_dissolve_in_water
3. It ends up breaking down into H+ NO3 which is an acid.
http://answers.yahoo.com/question/index?qid=20080108190009AA0Uied
4. The pH tells you how much H+ ions that are inside of a certain acid or base. If the pH is lower than 7 it is an acid and if it is higher it is a base.
(remembered this from the question on objective 3)
5. The concentration of hydrogen is pretty high when the pH is low which means the pH of 3 has more hydrogen ions than the pH of 7.
http://wiki.answers.com/Q/What_solution_has_a_greater_concentration_of_hydrogen_ions_a_solution_with_a_pH_of_3_of_a_pH_of_7_Explain
Objective 3:
1. They are if something tastes sour, if it reacts to metals or carbonates, if it turns blue litmus paper red, a pH lower than 7, and lastly if in a solution it produces hydrogen ions.
http://wiki.answers.com/Q/What_properties_distinguish_acids&alreadyAsked=1&rtitle=What_are_four_properties_of_acids&isLookUp=1
2. They taste bitter, feel slippery, can be caustic, and turn red litmus paper blue.
http://wiki.answers.com/Q/What_are_the_properties_of_bases#ixzz16botVnjO
3. If the paper turns red it must be an acid and if it turns it blue it must be a base.
4. You can tell because if the food is sour it is a acid and if it is bitter it is a base.
5. You need to wear gloves because the fertilizer will hurt your hands. Also allows you not to wash your hans so often while doing gardening.
http://wiki.answers.com/Q/Why_is_it_wise_to_wear_gloves_while_spreading_fertilizer_in_a_garden
http://wiki.answers.com/Q/What_properties_distinguish_acids&alreadyAsked=1&rtitle=What_are_four_properties_of_acids&isLookUp=1
2. They taste bitter, feel slippery, can be caustic, and turn red litmus paper blue.
http://wiki.answers.com/Q/What_are_the_properties_of_bases#ixzz16botVnjO
3. If the paper turns red it must be an acid and if it turns it blue it must be a base.
4. You can tell because if the food is sour it is a acid and if it is bitter it is a base.
5. You need to wear gloves because the fertilizer will hurt your hands. Also allows you not to wash your hans so often while doing gardening.
http://wiki.answers.com/Q/Why_is_it_wise_to_wear_gloves_while_spreading_fertilizer_in_a_garden
Objective 2:
1. Concentration is the measurment of what amount of one thing is in another thing. To figure this out you need to know how the solvent is compared to the solute.
http://en.wikipedia.org/wiki/Concentration
2. Solubility is used to idenify substances because it is a characteristic property of matter.
http://wiki.answers.com/Q/Why_is_solubility_useful_in_identifying_substances#ixzz16bmbSKQR
3. There are three types and those are tempature, pressure, and type of the solvent.
http://wiki.answers.com/Q/What_factors_affect_the_solubility_of_a_substance&isLookUp=1
4. When the tempature is hot the solid will melt and if it is too cold it will freeze.
http://wiki.answers.com/Q/How_does_temperature_affect_the_solubility_of_a_solid
5. It can help because of the object's characteristic property of matter. This helps you know how easily something may be able to dissolve inside of that certain matter.
http://wiki.answers.com/Q/How_can_solubility_help_you_identify_a_substance&isLookUp=1
http://en.wikipedia.org/wiki/Concentration
2. Solubility is used to idenify substances because it is a characteristic property of matter.
http://wiki.answers.com/Q/Why_is_solubility_useful_in_identifying_substances#ixzz16bmbSKQR
3. There are three types and those are tempature, pressure, and type of the solvent.
http://wiki.answers.com/Q/What_factors_affect_the_solubility_of_a_substance&isLookUp=1
4. When the tempature is hot the solid will melt and if it is too cold it will freeze.
http://wiki.answers.com/Q/How_does_temperature_affect_the_solubility_of_a_solid
5. It can help because of the object's characteristic property of matter. This helps you know how easily something may be able to dissolve inside of that certain matter.
http://wiki.answers.com/Q/How_can_solubility_help_you_identify_a_substance&isLookUp=1
HW 10:
Objective 1: Understanding Solutions
1. What are the characteristics of solutions, colloids, and suspensions? Suspensions are a "homogeneous fluid" that has solid particals that are large. Colloids disperse in a substance evenly and solutions have much smaller particals than either of the other two.
http://en.wikipedia.org/wiki/Solutions
http://en.wikipedia.org/wiki/Colloids
http://en.wikipedia.org/wiki/suspensions
2. What happens to the particles of a solute when a solution forms? The particals from the solute go away and are a part of the solevent.
http://zellescienceblog.blogspot.com/
3. How do solutes affect the freezing point and boiling point of a solvent? The boiling point of the solvent gets bigger when a solute is added because a solution has a bigger boiling point compared to a pure solvent. The freezing point gets lower also.
http://eigthscience.blogspot.com/
http://eigthscience.blogspot.com/
5. What effects do solutes have on a solvent’s freezing and boiling points? A solute makes the boiling point bigger because a solution has a bigger boiling point compared to a pure solvent. It also makes the freezing point a lot lower. The coligative property helps to understand the boiling point elevation.
http://en.wikipedia.org/wiki/Boiling-point_elevation4. Suppose you mix food coloring in water to make it blue. Have you made a solution or solution or a suspension? Explain. You would make a solution because it is going throughout the water and dissolves.
1. What are the characteristics of solutions, colloids, and suspensions? Suspensions are a "homogeneous fluid" that has solid particals that are large. Colloids disperse in a substance evenly and solutions have much smaller particals than either of the other two.
http://en.wikipedia.org/wiki/Solutions
http://en.wikipedia.org/wiki/Colloids
http://en.wikipedia.org/wiki/suspensions
2. What happens to the particles of a solute when a solution forms? The particals from the solute go away and are a part of the solevent.
http://zellescienceblog.blogspot.com/
3. How do solutes affect the freezing point and boiling point of a solvent? The boiling point of the solvent gets bigger when a solute is added because a solution has a bigger boiling point compared to a pure solvent. The freezing point gets lower also.
http://eigthscience.blogspot.com/
http://eigthscience.blogspot.com/
5. What effects do solutes have on a solvent’s freezing and boiling points? A solute makes the boiling point bigger because a solution has a bigger boiling point compared to a pure solvent. It also makes the freezing point a lot lower. The coligative property helps to understand the boiling point elevation.
http://en.wikipedia.org/wiki/Boiling-point_elevation4. Suppose you mix food coloring in water to make it blue. Have you made a solution or solution or a suspension? Explain. You would make a solution because it is going throughout the water and dissolves.
Monday, November 22, 2010
Science Test by Ansley and Nora
F C K Person Object
95 35 308.15 Jiro Wang We are 95 degrees
77 25 298.15 Calvin Chen At this store and it was 77 degrees
59 15 288.15 Wu Chun My house was 59 on last Thursday night
41 5 278.15 Aaron Yan Changed water to 41 degrees in sink
Friday, November 19, 2010
Test 9:
- Thermal energy is the total energy of all of the particles in one object while temperature and heat is an thermal energy moving from a hotter object to a colder one like when I touch a rock that has been in the snow for two days I am passing heat to it. Temperature is the measure of the warmness or the coldness of some object compared to a set value.
- Some things get hotter faster than others because their specific heat is a lot more or a lot less than another object.
- One type of heat transfer is conduction and this is when heat transfer is from one place to another without the movement of any matter. These transfer thermal energy very well and are many types of silver and other things like that. The reason why silver and those things are conductors are because they are cold to the touch. They are this way because it is the way the particles are arranged. Another type is convection and this is when movement of heat transfer is by movement. These things don’t transfer thermal energy well at all which makes them good for keeping you warm. That is why they aren’t cold to the touch like conductors. Some examples are clothes, blankets, and wool socks because these things don’t transfer the thermal energy well. The last type is radiation and that is the transfer of thermal energy by electromagnetic waves. Some examples are radio waves, microwave waves, and other object like this. As humans we can’t see these, we just see a small part of this which is the visible light section.
- You need to raise the temperature by 209,000J.
- A tent would trap the air you are in and make it warmer which would be conduction. The fire would send out heat to make you warm so that would be radiation. Both of these would help but a fire would help the most because you would get warmer right away while being in your tent wouldn’t help right away, it would take a long time. That is why I would build a fire and not set up a tent.
Sites I Used
http://ansleydevore.blogspot.com/
http://griffinscience.com/
http://dictionary.reference.com/browse/temperature
Wednesday, November 17, 2010
Objective 5:
1. They use the thermal energy by making the gas getting bigger inside of this cylender shaped thing. This makes this thing called the pistol to go downward causing there to be a spark which then lights the spark plug.
http://www.ehow.com/how-does_4926292_car-engine-piston-work.html
http://wiki.answers.com/Q/In_a_heat_engine_what_happens_to_thermal_energy_that_is_converted_from_chemical_energy
2. They are alike and different becuase of what it this says "In an internal combustion engine, a working fluid is heated and expanded to produce power, captured in a cylinder and piston or in a turbine or similar system, and this heating and expansion is produced by burning fuel inside the expansion chamber. In an external combustion engine, the working fluid is heated by burning fuel, then introduced into the expansion chamber to produce power." from http://wiki.answers.com/Q/Difference_between_internal_combustion_engines_and_external_combustion_engines. This basically means that the external one makes power by fluid being heated up while the internal one is made by a fluid that is heated and expands to make power.
http://wiki.answers.com/Q/Difference_between_Internal_combustion_and_external_combustion_engine
3. I think that most likely (even though I now nothing about cars) that the external one could be a little bit dangerous becuase it is done by burning fuel which could be dangerous.
4. What happens it all the hot air is sucked out causing it to be very cold inside of it.
5. It would effect it because then all of the hot air would stay in there and cause everything to be getting hotter.
http://www.ehow.com/how-does_4926292_car-engine-piston-work.html
http://wiki.answers.com/Q/In_a_heat_engine_what_happens_to_thermal_energy_that_is_converted_from_chemical_energy
2. They are alike and different becuase of what it this says "In an internal combustion engine, a working fluid is heated and expanded to produce power, captured in a cylinder and piston or in a turbine or similar system, and this heating and expansion is produced by burning fuel inside the expansion chamber. In an external combustion engine, the working fluid is heated by burning fuel, then introduced into the expansion chamber to produce power." from http://wiki.answers.com/Q/Difference_between_internal_combustion_engines_and_external_combustion_engines. This basically means that the external one makes power by fluid being heated up while the internal one is made by a fluid that is heated and expands to make power.
http://wiki.answers.com/Q/Difference_between_Internal_combustion_and_external_combustion_engine
3. I think that most likely (even though I now nothing about cars) that the external one could be a little bit dangerous becuase it is done by burning fuel which could be dangerous.
4. What happens it all the hot air is sucked out causing it to be very cold inside of it.
5. It would effect it because then all of the hot air would stay in there and cause everything to be getting hotter.
Sunday, November 14, 2010
Objective 4:
1. Something changes state when it gets hotter or is heated up.
http://wiki.answers.com/Q/What_causes_matter_to_change_state
2. It causes the paritcles to move faster and after awhile it will become a liquid if it is a solid.
http://wiki.answers.com/Q/What_happens_to_the_particles_of_a_solid_as_the_thermal_energy_of_the_substance_increases
3. The tempature stays the same because all the tempature's energy is being put into the matter changing in its state. http://wiki.answers.com/Q/Why_does_the_temperature_of_matter_remain_the_same_while_the_matter_changes_state
4. When something gets hotter it begins to melt becuase all of the matter gets bigger causing making it melt away.
http://wiki.answers.com/Q/What_causes_a_solid_to_melt
5. It is mainly made from moisture so as it is heated up it begins to steam. If the steam doesn't have a way to get out then it will explode.
http://wiki.answers.com/Q/Why_should_you_poke_holes_in_a_potato_before_baking_it
http://wiki.answers.com/Q/What_causes_matter_to_change_state
2. It causes the paritcles to move faster and after awhile it will become a liquid if it is a solid.
http://wiki.answers.com/Q/What_happens_to_the_particles_of_a_solid_as_the_thermal_energy_of_the_substance_increases
3. The tempature stays the same because all the tempature's energy is being put into the matter changing in its state. http://wiki.answers.com/Q/Why_does_the_temperature_of_matter_remain_the_same_while_the_matter_changes_state
4. When something gets hotter it begins to melt becuase all of the matter gets bigger causing making it melt away.
http://wiki.answers.com/Q/What_causes_a_solid_to_melt
5. It is mainly made from moisture so as it is heated up it begins to steam. If the steam doesn't have a way to get out then it will explode.
http://wiki.answers.com/Q/Why_should_you_poke_holes_in_a_potato_before_baking_it
Objective 3:
1. They are conduction, convection, and radiation.
http://wiki.answers.com/Q/What_are_3_forms_of_heat_transfer&alreadyAsked=1&rtitle=What_are_the_three_forms_of_heat_transfer
2. It always lets go of heat never lets go of coldness.
http://wiki.answers.com/Q/In_which_direction_is_heat_transferred
3. Conductors make it easy for energy to flow through it and insulators cause the energy to go slower through it. Also conductors are cold at the touch while insulators keep things warm such as wool socks.
4. I would say that it would be better to use the copper pipe as an conductor because it is cold at the touch and it allows things to to flow easily.
5. I would first get in my tent (conduction) because trapped air makes warm air but the fire (radiation) helps a lot too becuase it gives off hot air which does help. So I would most likely first get inside my tent till I felt pretty warm and then stuff a lot of leaves and other things into my jacket because that helps keep you warm. Then I would build my fire. The fire would help the most though.
http://www.highsierraadventures.com/skills/survival.htm
http://wiki.answers.com/Q/What_are_3_forms_of_heat_transfer&alreadyAsked=1&rtitle=What_are_the_three_forms_of_heat_transfer
2. It always lets go of heat never lets go of coldness.
http://wiki.answers.com/Q/In_which_direction_is_heat_transferred
3. Conductors make it easy for energy to flow through it and insulators cause the energy to go slower through it. Also conductors are cold at the touch while insulators keep things warm such as wool socks.
4. I would say that it would be better to use the copper pipe as an conductor because it is cold at the touch and it allows things to to flow easily.
5. I would first get in my tent (conduction) because trapped air makes warm air but the fire (radiation) helps a lot too becuase it gives off hot air which does help. So I would most likely first get inside my tent till I felt pretty warm and then stuff a lot of leaves and other things into my jacket because that helps keep you warm. Then I would build my fire. The fire would help the most though.
http://www.highsierraadventures.com/skills/survival.htm
Objective 2:
1. They measure the tempature by telling how fast the paritcles in the air are moving. So if it was a hot tempature that would mean that the particles are moving really fast.
2. Well the Kelvin and Celsius ones both measure in the same degrees between the freezing and boiling points but they have different zero points which make them very alike and different. One intervel of Fahrenheit is equal to about 5/9 of Celsius which shows how they are different. "Unlike the degree Fahrenheit and degree Celsius, the kelvin is not referred to or typeset as a degree." This was said by http://en.wikipedia.org/wiki/Kelvin. And this basically means that Kelvin isn't really a degree such as Celsuis and Fahrenheit.
http://wiki.answers.com/Q/How_are_the_three_temperature_scales_alike
http://en.wikipedia.org/wiki/Fahrenheit
3. 41 F
4. 460 C
5. The tempature needs to be raised by 209,000K
2. Well the Kelvin and Celsius ones both measure in the same degrees between the freezing and boiling points but they have different zero points which make them very alike and different. One intervel of Fahrenheit is equal to about 5/9 of Celsius which shows how they are different. "Unlike the degree Fahrenheit and degree Celsius, the kelvin is not referred to or typeset as a degree." This was said by http://en.wikipedia.org/wiki/Kelvin. And this basically means that Kelvin isn't really a degree such as Celsuis and Fahrenheit.
http://wiki.answers.com/Q/How_are_the_three_temperature_scales_alike
http://en.wikipedia.org/wiki/Fahrenheit
3. 41 F
4. 460 C
5. The tempature needs to be raised by 209,000K
Objective 1:
1. The three types are Fahrenheit, Celsius, and Kelvin scales.
http://wiki.answers.com/Q/What_are_the_names_of_three_temperature_scales
2. The thermal energy is what causes the temperature to change because when the energy isn't very strong than it is cold outside but when it is strong it is hot outside because the molecule get heated up and energized from the thermal energy. The thermal energy is the energy of all of the particles in an object and you need to know the temp. of them and the heat to find this.
3. This basically means the amount of energy that is needed to make a substance get bigger by one degree Celcius. Such as water's specific heat is a lot higher than ice.
http://wiki.answers.com/Q/Why_does_water_have_a_high_and_specific_heat_capacity
4. It will melt in your hand because your hand is very warm compared to the ice which is frozen so since your hand is so warm you melt the ice. The ice doesn't make you colder it is just taking away the heat.
5. There are two things that have to do with why some things get hotter than others faster. One thing is just how much water (mositer) in the object. The other thing is some thinkings have higher or lower specific heat thing that I explained in problem 3. If it has a higher specific heat than it takes a lot longer than if it happened to have a lower one.
http://zellescienceblog.blogspot.com/
http://wiki.answers.com/Q/What_are_the_names_of_three_temperature_scales
2. The thermal energy is what causes the temperature to change because when the energy isn't very strong than it is cold outside but when it is strong it is hot outside because the molecule get heated up and energized from the thermal energy. The thermal energy is the energy of all of the particles in an object and you need to know the temp. of them and the heat to find this.
3. This basically means the amount of energy that is needed to make a substance get bigger by one degree Celcius. Such as water's specific heat is a lot higher than ice.
http://wiki.answers.com/Q/Why_does_water_have_a_high_and_specific_heat_capacity
4. It will melt in your hand because your hand is very warm compared to the ice which is frozen so since your hand is so warm you melt the ice. The ice doesn't make you colder it is just taking away the heat.
5. There are two things that have to do with why some things get hotter than others faster. One thing is just how much water (mositer) in the object. The other thing is some thinkings have higher or lower specific heat thing that I explained in problem 3. If it has a higher specific heat than it takes a lot longer than if it happened to have a lower one.
http://zellescienceblog.blogspot.com/
Sunday, November 7, 2010
Objective 6:
1. This law shows how and why gases get bigger when they get hotter.
http://en.wikipedia.org/wiki/Charles%27_Law
2. As the temperature of a gas increases, the gas molecules move more crazily because they get more thermal energy.
3. The Robert brothers were the first to build one of these for Charels and then Charels flew in it first. http://en.wikipedia.org/wiki/Robert_brothers
4. When it landed local people attacked it. They wree afraid of it and so ripped it up with knives and other things.
http://en.wikipedia.org/wiki/Robert_brothers
5. The k is kept constant in the formula:
http://en.wikipedia.org/wiki/Charles_law
http://en.wikipedia.org/wiki/Charles%27_Law
2. As the temperature of a gas increases, the gas molecules move more crazily because they get more thermal energy.
3. The Robert brothers were the first to build one of these for Charels and then Charels flew in it first. http://en.wikipedia.org/wiki/Robert_brothers
4. When it landed local people attacked it. They wree afraid of it and so ripped it up with knives and other things.
http://en.wikipedia.org/wiki/Robert_brothers
5. The k is kept constant in the formula:
http://en.wikipedia.org/wiki/Charles_law
Objective 5:
1. This law shows the relationship between pressure and volume of a gas.
http://en.wikipedia.org/wiki/Boyle%27s_Law
2. As the balloon rises it begins to get bigger which means that they can't fill a balloon completely up or else it will pop.
http://wiki.answers.com/Q/Why_do_most_helium_filled_balloons_burst_as_they_ascend_to_high_altitudes
3. PV = k is the formula. P=pressure V=volume of gas k=constant value of pressure and volume
http://wiki.answers.com/Q/What_is_the_formula_of_Boyle's_law&alreadyAsked=1&rtitle=What_is_the_formula_for_Boyle%27s_Law
4. They use it when they do oxegen tanks because when they find the pressure in the tank they can see how much is actually left in the tank.
5. Scuba divers use it for their oxegen tanks because just like doctors they can see how much oxegen they have left.
http://en.wikipedia.org/wiki/Boyle%27s_Law
2. As the balloon rises it begins to get bigger which means that they can't fill a balloon completely up or else it will pop.
http://wiki.answers.com/Q/Why_do_most_helium_filled_balloons_burst_as_they_ascend_to_high_altitudes
3. PV = k is the formula. P=pressure V=volume of gas k=constant value of pressure and volume
http://wiki.answers.com/Q/What_is_the_formula_of_Boyle's_law&alreadyAsked=1&rtitle=What_is_the_formula_for_Boyle%27s_Law
4. They use it when they do oxegen tanks because when they find the pressure in the tank they can see how much is actually left in the tank.
5. Scuba divers use it for their oxegen tanks because just like doctors they can see how much oxegen they have left.
Objective 4:
1. The warmer particles are bouncing around everywhere because of the energy that the sun is giving out. This makes them warmer because they have more energy. The cooler particals don't have as much sun energy causing them to be less bouncy and wild so they get cold.
2. Ice-cream starts to melt on warm summer days because when it is cold for them feezer the paritcals are just sort of sitting there and not moving around as much but then the sun causes the particals to get energized so they start to heat up causing the ice-cream to melt.
3. The melting point of particals has a lot to do with the vibration of the particals. This is because as the particals begin to move around a lot they get a lot hotter causing the object to melt.
4. This happens when it is really humid in the air and then all the sudden it gets cold. This then makes the air dissolve so then the water is made into little drops of water like on a hot day and you see condensation on the cup.
http://wiki.answers.com/Q/Why_does_condensation_occur
5. Sublimation happens when a gas turns to a solid without becoming a liquid. From the website that follows I got this quote thing explaing it. "It is shown that the form of the sublimation process in which phase transformation takes place not from the geometric surface but in a certain layer of finite thickness is a stable one."
http://www.springerlink.com/content/qr74408237k73226/
2. Ice-cream starts to melt on warm summer days because when it is cold for them feezer the paritcals are just sort of sitting there and not moving around as much but then the sun causes the particals to get energized so they start to heat up causing the ice-cream to melt.
3. The melting point of particals has a lot to do with the vibration of the particals. This is because as the particals begin to move around a lot they get a lot hotter causing the object to melt.
4. This happens when it is really humid in the air and then all the sudden it gets cold. This then makes the air dissolve so then the water is made into little drops of water like on a hot day and you see condensation on the cup.
http://wiki.answers.com/Q/Why_does_condensation_occur
5. Sublimation happens when a gas turns to a solid without becoming a liquid. From the website that follows I got this quote thing explaing it. "It is shown that the form of the sublimation process in which phase transformation takes place not from the geometric surface but in a certain layer of finite thickness is a stable one."
http://www.springerlink.com/content/qr74408237k73226/
Thursday, November 4, 2010
Objective 3:
1. There are six types of forms of energy related to they changes in matter. They are kinetic, potential, electromagnetic, chemical, electical, and last but not least thermal energy.
2. Kinetic energy
3. Potential energy
4. Electromagnetic energy is basically things like radiation waves, gamma rays, and other things like that, that we can't see.
5. That energy is electical energy. One example of this is the projector shoots these electrons out to form a picture on the board.
2. Kinetic energy
3. Potential energy
4. Electromagnetic energy is basically things like radiation waves, gamma rays, and other things like that, that we can't see.
5. That energy is electical energy. One example of this is the projector shoots these electrons out to form a picture on the board.
Wednesday, November 3, 2010
Objective 2:
1. Well a chemical and physical change are very different. A chemical change is when something that is inside of something else changes like the particles or mineral things that are in it change. A physical change is something that you can see. It is like if I died my hair green, you can see the difference on the external or the outside of me. http://wiki.answers.com/Q/The_main_difference_between_a_physical_and_a_chemical_change_is&alreadyAsked=1&rtitle=What_is_the_main_difference_between_a_physical_change_and_a_chemical_change
2. A chemical change can occor in four ways. One ways is that a solid is made. Another is that an object changes color. The third way is that gases are formed and made. The last way is that light, sound, and/or heat are made.
http://wiki.answers.com/Q/Four_ways_you_can_tell_a_chemical_change_has_taken_place
3. The law basically said that in a closed object that the mass of that object will stay the same. It was made by ancient Greek philosophy people but one man's name that helped a lot was Epicurus.
http://en.wikipedia.org/wiki/Conservation_of_mass
4. Tempature and thermal energy are very different. Tempature is when how hot something is, is the average of kinetic energy. Themral energy is averaged with kinetic energy and all the other different types of energy.
http://wiki.answers.com/Q/How_is_temperature_and_thermal_energy_different
5. Exothermic-A lizard is exothermic because it uses the sun to get body heat.
Endothermic-We are endothermic because we make our own body heat.
2. A chemical change can occor in four ways. One ways is that a solid is made. Another is that an object changes color. The third way is that gases are formed and made. The last way is that light, sound, and/or heat are made.
http://wiki.answers.com/Q/Four_ways_you_can_tell_a_chemical_change_has_taken_place
3. The law basically said that in a closed object that the mass of that object will stay the same. It was made by ancient Greek philosophy people but one man's name that helped a lot was Epicurus.
http://en.wikipedia.org/wiki/Conservation_of_mass
4. Tempature and thermal energy are very different. Tempature is when how hot something is, is the average of kinetic energy. Themral energy is averaged with kinetic energy and all the other different types of energy.
http://wiki.answers.com/Q/How_is_temperature_and_thermal_energy_different
5. Exothermic-A lizard is exothermic because it uses the sun to get body heat.
Endothermic-We are endothermic because we make our own body heat.
Tuesday, November 2, 2010
Objective One:
Objective 1:
1. Mass is more important for many reasons. One reason, which is the main one, is that if I were to weigh myself on Mars I would have a differet weight than I would on Earth. This shows that the weight of an object can change but the mass is always the same. Just like my mass wouldn't change even if I were on Mars. http://wiki.answers.com/Q/Why_is_mass_more_useful_than_weight_for_measuring_matter
2. the volume is 619.65cm3 (the three is supposed to be very small and on the top but I don't know how to do that)
3. The measurement of density is g/cm3 (same thing up there with the three being small and on the top)
4. D=mass over volume
5. V=L*W*H (* means times)
1. Mass is more important for many reasons. One reason, which is the main one, is that if I were to weigh myself on Mars I would have a differet weight than I would on Earth. This shows that the weight of an object can change but the mass is always the same. Just like my mass wouldn't change even if I were on Mars. http://wiki.answers.com/Q/Why_is_mass_more_useful_than_weight_for_measuring_matter
2. the volume is 619.65cm3 (the three is supposed to be very small and on the top but I don't know how to do that)
3. The measurement of density is g/cm3 (same thing up there with the three being small and on the top)
4. D=mass over volume
5. V=L*W*H (* means times)
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