1. Matter changes state because of temperature and pressure
http://wiki.answers.com/Q/What_causes_matter_to_change_states
2. The substance's particles move faster eventually changing from a solid to a liquid
http://wiki.answers.com/Q/What_happens_to_the_particles_of_a_solid_as_the_thermal_energy_of_the_substance_increases
3. The temperature of the matter remain the same because when it gets cold the particles still jumble together making it warm
4. A solid melts because of fire or heat
http://wiki.answers.com/Q/What_causes_a_solid_to_melt
5. You poke holes in the potato skin because it's almost waterproof and if it burns or explodes you can't help it
http://wiki.answers.com/Q/Why_should_you_poke_holes_in_the_skin_of_a_potato_before_it_is_baked
Thursday, November 18, 2010
Objective 3
1. The three forms of heat transfer are Conduction, Convection, and Radiation
2. Heat moves upward
3. The difference between conductors and insulators is insulators slow down the process of conduction by itself where as conductors let energy flow through it easily
http://wiki.answers.com/Q/What_is_the_difference_between_conductors_and_insulators
4. I think a conductor would work best because it goes slow and steady in the procces of transfering energy
5. I would keep warm by making a fire first, because fire provides warmth fast, if you know how to use it, but a tent would also be important because it helps the heat molecules stay in the tent longer
2. Heat moves upward
3. The difference between conductors and insulators is insulators slow down the process of conduction by itself where as conductors let energy flow through it easily
http://wiki.answers.com/Q/What_is_the_difference_between_conductors_and_insulators
4. I think a conductor would work best because it goes slow and steady in the procces of transfering energy
5. I would keep warm by making a fire first, because fire provides warmth fast, if you know how to use it, but a tent would also be important because it helps the heat molecules stay in the tent longer
Wednesday, November 17, 2010
Objective 2
1. Thermometers measure temperature by using a substance called mercury (the red stuff inside the tube) because it expands when it's hot and decreases when it's cold
http://wiki.answers.com/Q/How_do_thermometers_measure_temperature
2. The three temperature scales are different because in faranheit, water boils at 212 degrees faranheit and freezes at 32 degrees, in kelvin, water boils at 373 kelvin and freezes at 273 kelvin, but in celsius water boils at 100 degrees C, and freezes at 0 degrees C
3. 5 degrees celsius x 9/5 + 32= Farneheit , so 5 x 9/5= 9 + 32= 41 degrees faranheit
4. 860 degrees faranheit x 5/9 - 32= Celsius, so 860 x 5/9=477.777 - 32 = 445.777
5. 5,000 kelvin
http://wiki.answers.com/Q/How_do_thermometers_measure_temperature
2. The three temperature scales are different because in faranheit, water boils at 212 degrees faranheit and freezes at 32 degrees, in kelvin, water boils at 373 kelvin and freezes at 273 kelvin, but in celsius water boils at 100 degrees C, and freezes at 0 degrees C
3. 5 degrees celsius x 9/5 + 32= Farneheit , so 5 x 9/5= 9 + 32= 41 degrees faranheit
4. 860 degrees faranheit x 5/9 - 32= Celsius, so 860 x 5/9=477.777 - 32 = 445.777
5. 5,000 kelvin
Objective 1
1. The three main temperature scales are celsius, faranheit, and kelvin
http://www.homeatlastinc.com/Bedroomset.html
2. Thermal energy relates to temperature and heat because thermal energy is a type of heat energy and so is temperature
http://wiki.answers.com/Q/How_does_temperature_relate_to_thermal_energy
3. Having a high specific heat is the ability of an object to stabilize itself on the heat around it
http://www.sciencebyjones.com/specific_heat1.htm
4. An ice cube melts because the H2O particles change from ice to a liquid because of the temperature
http://uk.answers.yahoo.com/question/index?qid=20070117113616AAq4Jee
5. Some objects get hot more quickly than others because of their specific heat capacity and it's thermal conductivity
http://answers.yahoo.com/question/index?qid=20090205144702AAzZ3jj
http://www.homeatlastinc.com/Bedroomset.html
2. Thermal energy relates to temperature and heat because thermal energy is a type of heat energy and so is temperature
http://wiki.answers.com/Q/How_does_temperature_relate_to_thermal_energy
3. Having a high specific heat is the ability of an object to stabilize itself on the heat around it
http://www.sciencebyjones.com/specific_heat1.htm
4. An ice cube melts because the H2O particles change from ice to a liquid because of the temperature
http://uk.answers.yahoo.com/question/index?qid=20070117113616AAq4Jee
5. Some objects get hot more quickly than others because of their specific heat capacity and it's thermal conductivity
http://answers.yahoo.com/question/index?qid=20090205144702AAzZ3jj
Thursday, November 11, 2010
Objective 5
1. Boyle's law describes the relationship between the absolute pressure and the volume of a gas
http://en.wikipedia.org/wiki/Boyle's_law
2. Because high-altitude balloons displace a greater weight than itself so it could blow up or not be able to fly if it wasn't half filled
http://www.google.com/search?hl=en&rlz=1R2SUNA_enUS327&q=why+do+scientists+only+half+fill+high+air+balloons%5C&aq=f&aqi=&aql=f&oq=&gs_rfai
3. The equation for Boyle's law is PV = k or you could say P1V1=P2V2.
P= the pressure
V= the volume of the gas.
K= the value representative of the pressure and volume
http://en.wikipedia.org/wiki/Boyle's_law
4. It could help with how much pressure you should press on somebodys volume???? I was completely confused on this one
5. Boyle's law gives simple rules to Scuba diving, for example consider the pressure of the water, so how far down can you go, the volume of your body....etc
http://scuba-doc.com/surgdiv.html
http://en.wikipedia.org/wiki/Boyle's_law
2. Because high-altitude balloons displace a greater weight than itself so it could blow up or not be able to fly if it wasn't half filled
http://www.google.com/search?hl=en&rlz=1R2SUNA_enUS327&q=why+do+scientists+only+half+fill+high+air+balloons%5C&aq=f&aqi=&aql=f&oq=&gs_rfai
3. The equation for Boyle's law is PV = k or you could say P1V1=P2V2.
P= the pressure
V= the volume of the gas.
K= the value representative of the pressure and volume
http://en.wikipedia.org/wiki/Boyle's_law
4. It could help with how much pressure you should press on somebodys volume???? I was completely confused on this one
5. Boyle's law gives simple rules to Scuba diving, for example consider the pressure of the water, so how far down can you go, the volume of your body....etc
http://scuba-doc.com/surgdiv.html
Objective 4
1. The thermal energy of particles go up when it's cold because when temperature goes down, the volume goes down, and the pressure goes up. But when it's hot the temperature goes up, the volume goes up, and the pressure goes down, and the thermal energy goes down.
2. Ice Cream melts on a warm sunny day because matter changes it's state depending on the formula stated in question 1 so when it's warm the ice cream will change it's state from a solid to a liquid.
http://www.word-detective.com/howcome/icecreammelt.html
3. When particles melt they get all jumpy (like gray's muffin joke) and they start to get scared in vibrate like the formula in statement 1
4. Condensation will occur when the humidity rate is near 100%
http://answers.yahoo.com/question/index?qid=20090322180353AA0fGFw
5. Sublimation occurs when a solid goes straight to a gas.
http://www.google.com/search?hl=en&rlz=1R2SUNA_enUS327&q=when+does+sublimation+occur&aq=0l&aqi=g-l1&aql=f&oq=when+does+sublimaation+occur&gs_rfai=
2. Ice Cream melts on a warm sunny day because matter changes it's state depending on the formula stated in question 1 so when it's warm the ice cream will change it's state from a solid to a liquid.
http://www.word-detective.com/howcome/icecreammelt.html
3. When particles melt they get all jumpy (like gray's muffin joke) and they start to get scared in vibrate like the formula in statement 1
4. Condensation will occur when the humidity rate is near 100%
http://answers.yahoo.com/question/index?qid=20090322180353AA0fGFw
5. Sublimation occurs when a solid goes straight to a gas.
http://www.google.com/search?hl=en&rlz=1R2SUNA_enUS327&q=when+does+sublimation+occur&aq=0l&aqi=g-l1&aql=f&oq=when+does+sublimaation+occur&gs_rfai=
Objective 3
1. The six forms of energy related to changes in matter are electromagnetic, potential, kinetic, electrical, chemical, and transforming energy.
http://wiki.answers.com/Q/What_are_six_forms_of_energy_related_to_changes_in_matter
2. A rolling ball has kinetic energy
http://wiki.answers.com/Q/What_type_of_energy_does_a_ball_have_when_it_is_at_the_top_of_a_ramp
3. A bolling ball still has kinetic energy
4. Electromagnetic energy is electromagnetic waves that can be gamma rays, X rays, radio waves...etc, the formula for electromagnetic energy= EME = hf= zC^2f = zCI=CV= WbI=VWb/z.
http://www.buzzle.com/articles/what-is-electromagnetic-energy.html
http://wiki.answers.com/Q/What_is_electromagnetic_energy
5. The energy of electrons moving around is electromagnetic energy
http://wiki.answers.com/Q/What_are_six_forms_of_energy_related_to_changes_in_matter
2. A rolling ball has kinetic energy
http://wiki.answers.com/Q/What_type_of_energy_does_a_ball_have_when_it_is_at_the_top_of_a_ramp
3. A bolling ball still has kinetic energy
4. Electromagnetic energy is electromagnetic waves that can be gamma rays, X rays, radio waves...etc, the formula for electromagnetic energy= EME = hf= zC^2f = zCI=CV= WbI=VWb/z.
http://www.buzzle.com/articles/what-is-electromagnetic-energy.html
http://wiki.answers.com/Q/What_is_electromagnetic_energy
5. The energy of electrons moving around is electromagnetic energy
Objective 2
1. The main difference between a physical change and a chemical change is in a physical change no new substances are born. In a chemical change one or more new substances are born
http://www.physlink.com/education/askexperts/ae244.cfm
2. 4 ways to tell a chemical change has occured are a temperature change, a colour change, a gas given off, or a sound given off
http://wiki.answers.com/Q/How_can_you_tell_a_chemical_reaction_is_occurring
3. The law of conservation of mass states that matter cannot be changed or destroyed, but it can change forms and Antoine Lavoisier
http://wiki.answers.com/Q/What_is_the_Law_of_Conservation_of_Mass
4. Thermal Energy and Temperature are different because thermal energy is the total amount of kinetic energy in a substance and temperature is the average amount of kinetic energy in a substance
http://wiki.answers.com/Q/How_is_temperature_different_from_thermal_energy
5. An example of an exothermic reaction is adding water to anhydrous copper (II) and sulfate
http://en.wikipedia.org/wiki/Exothermic_reaction
An example of an endothermic reaction is dissolving ammonium chloride in water
http://chemistry.about.com/od/lecturenotesl3/a/endorxns.htm
http://www.physlink.com/education/askexperts/ae244.cfm
2. 4 ways to tell a chemical change has occured are a temperature change, a colour change, a gas given off, or a sound given off
http://wiki.answers.com/Q/How_can_you_tell_a_chemical_reaction_is_occurring
3. The law of conservation of mass states that matter cannot be changed or destroyed, but it can change forms and Antoine Lavoisier
http://wiki.answers.com/Q/What_is_the_Law_of_Conservation_of_Mass
4. Thermal Energy and Temperature are different because thermal energy is the total amount of kinetic energy in a substance and temperature is the average amount of kinetic energy in a substance
http://wiki.answers.com/Q/How_is_temperature_different_from_thermal_energy
5. An example of an exothermic reaction is adding water to anhydrous copper (II) and sulfate
http://en.wikipedia.org/wiki/Exothermic_reaction
An example of an endothermic reaction is dissolving ammonium chloride in water
http://chemistry.about.com/od/lecturenotesl3/a/endorxns.htm
Monday, November 8, 2010
Objective 1
Question 1
Scientists prefer to use mass rather than weight because your weight can sometimes vary as to where you are.
http://wiki.answers.com/Q/Why_is_mass_more_useful_than_weight_for_measuring_matter
Question 2
The volume = length x width x height : 15.3cm x 9cm x 4.5cm
619.65cm3
Question 3
The unit measurement for density is usually grams or kilograms
http://wiki.answers.com/Q/What_unit_is_used_to_measure_density
Question 4
The formula for finding density is mass/volume
http://wiki.answers.com/Q/What_is_the_formula_to_finding_density
Question 5
The formula for finding volume is length x width x height
Scientists prefer to use mass rather than weight because your weight can sometimes vary as to where you are.
http://wiki.answers.com/Q/Why_is_mass_more_useful_than_weight_for_measuring_matter
Question 2
The volume = length x width x height : 15.3cm x 9cm x 4.5cm
619.65cm3
Question 3
The unit measurement for density is usually grams or kilograms
http://wiki.answers.com/Q/What_unit_is_used_to_measure_density
Question 4
The formula for finding density is mass/volume
http://wiki.answers.com/Q/What_is_the_formula_to_finding_density
Question 5
The formula for finding volume is length x width x height
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