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True or false.
In a mixture, the particles are evenly mixed. |
False (this is true of a solution) |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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| How can you separate a mixture containing sugar and nails? |
Use a magnet. |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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Particles of matter move ___________ as heat is applied.
a. slower
b. faster
c. the same |
b. faster |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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| Name 3 clues that a chemical change has occurred. |
1. produce heat
2. release gas
3. color change
4. produce light |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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| What is the difference between a physical change and a chemical reaction? |
In a chemical reaction, 1 or more new substances are formed.
In a physical change, no new substances are formed. |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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| Name the 6 process that cause matter to change state. |
1. boiling
2. melting
3. condensation
4. evaporation
5. freezing
6. sublimation |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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| In what state of matter do particles move the fastest? |
gas |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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| An object weighs 600 pounds on Earth. What does it weigh on the moon? |
100 pounds |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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| An object has a mass of 600 kg on Earth. What is its mass on the moon? |
600 kg |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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| Mass per unit of volume is ____________. |
density |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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| What are 2 ways to measure the volume of a solid? |
a. volume is length x width x height
b. measure the volume of water displaced when object is put in water |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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A substance seems to fill a container, but more can be forced in. The substance is a ______________.
a. solid
b. liquid
c. gas |
c. gas |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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| In which state(s) of matter are the particles far apart? |
gas |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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| In which state(s) of matter are the particles touching? |
solid
liquid |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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| In which state of matter do particles slide over each other? |
liquid |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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| The changing of a solid to a gas is called ________________________. |
sublimation |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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A liquid is usually _________ than a gas.
a. denser
b. less dense
the same |
denser |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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A solid is usually ______ than a liquid.
a. denser
b. less dense
c. the same |
denser |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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Nitrogen can be compressed and cooled into a liquid at a very low temperature.
So, nitrogen normally exists as a
a.solid
b. liquid
c. gas
d. none of these |
c. gas |
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angela Wed, 17 Mar 2010 20:18:57 GMT |
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