1. MATTER REVIEW

2. 1. Define the following
Matter –anything that has mass and takes up space
Evaporation- slow change from liquid to gas
Boiling Point- the temperature at which something boils, water boils at 100*C
Solubility- the ability for something to dissolve
Mixture- two or more things mixed together
Condensation- change from a gas to a liquid
Melting Point- the temperature at which a solid becomes a liquid, Ice melts at 0*C
Freezing Point- the temperature at which a liquid becomes a solid, water freezes at 0*C
Solution- a mixture in which something dissolves
Precipitation- when moisture (water) falls back to earth (rain, snow, sleet, hail)

3. 2. What is the difference between Mass and Weight?
Weight depends on gravity, Mass does NOT
Go to the moon and see

4. 3. List at least 5 physical properties a substance may have
Color
Luster
Shape
Size (volume)
Mass
Texture
Taste
Sound
Density
Weight
Odor
Magnetism
Solubility

5. 4.List 5 examples of a substance that has undergone a physical change.
Melting solidliquid
Freezing liquidsolid
Boiling liquidgas (fast)
Evaporating liquidgas (slow)
Condensation gasliquid

6. 5. List the three states of matter.
Solid, liquid, gas

7. 6.Which state of matter has the most energy?
Gas, the particles are moving the fastest and farthest

8. 7. Describe the solubility of each of the following mixtures
7.Describe the solubility of each of the following mixtures. Which ones keep their physical properties?
Sand/water/marbles …mixture
Salt/water… solution (salt dissolves)
Ice/marble… mixture
Pepper/water… mixture
Sugar/water/sand…solution
Oil/water…mixture
Salt/water/oil… solution

9. 8.What causes a cold glass to “sweat”?
Condensation occurs….the warm fast particles of the water vapor in the air hit the colder surface and slow down causing them to change state. Heat energy is taken away from the particles in the water vapor.

10. 9. Explain how the water cycle is demonstrated in heating ice cubes to boiling.

11. 10. What is the boiling point and freezing point of water?
boiling point = 100*C
Freezing point = 0*C

12. 11. Know your measurements!!!!
Centimeter…cm…length of short distances
Meter…m…length of medium distances
Kilometer…km…longer distances
Grams…g…mass(use triple beam balance)
Milliliters… ml…volume (graduated cylinder)

13. Which measurement? Glass of orange juice….ml Length of a crayon… cm
Size of this room…m
Mass of a marble…g