Matter Practice
Name _______________________
Fill in the word that matches the definition:
1. The amount of matter in an object mass
2. Measure of the pull of gravity on an object weight
3. The amount of space an object takes up volume
4. The three phases of matter solid, liquid, gas
5. Change from a liquid to a solid freezing
6. Change from a solid to a liquid melting
7. Change from a liquid to a gas boiling
8. Occurs when particles escape form a non-boiling liquid to become a gas:
evaporation
Draw a picture to represent the following and give characteristics of each
Volume
Compression
Flow
Has a definite
volume
Not easily
compressible
Does not flow
easily
Has a definite
Liquid volume
Not easily
compressible
Flows easily
Compressible (lots of
free space between
particles)
Flows easily
Solid
Gas
Assumes the
volume of it’s
container- not
definite
9. Combination of two or more different kinds of matter, each keeps its own
physical properties (easily separated) mixture
 Give 2 examples: salad, trail mix
10. Combination of two or more kind of matter in which the particles are mixed &
cannot be separated easily solution
 Give 2 examples: hot chocolate, kool-aid
11. What happens to the molecules when you add heat to a substance?
They speed up and the temperature increases
12. What happens to the molecules when you cool down a substance?
They slow down and the temperature decreases
Fill in the word that matches the definitions
13. The center of an atom made up of protons and neutrons: nucleus
14. The subatomic particle with a positive charge proton
15. The subatomic particle with a negative charge electron
16. The subatomic particle with a neutral charge neutron
17. The smallest unit of an element- has all the properties of that element atom
Fill out the chart below.
Definition
Substance made up of the
atoms of two or more
elements
Two or more atoms joined
together
Substance made up of only
one kind of atom
Vocabulary Word
Compound
Example
H2 O
Molecule
O2
Element
H
Label the atom. Word Bank: proton, nucleus, neutron, electron,
electron
neutron
proton
nucleus
How many atoms of each element are used to create the following compounds?
18.
CO₂
1 carbon, 2 oxygen
19.
H₂ O
2 hydrogen, 1 oxygen
20.
NaCl 1 sodium, 1 chorline
Answer the following
Erin had a plastic shovel on her porch that had a little bit of salt water left in it.
She left the shovel on her porch for one week in July. Describe what most likely
happened to the salt water and why.
The water dissolved, leaving the salt behind. Due to the temperature, the
water probably evaporated. The salt stayed behind because it is not soluble
and it will not evaporate.
Patrick left a bowl of room temperature water on his porch in January. He left
the bowl outside for one week. Describe what most likely happened to the water
and why.
The water probably froze. Since it was January, the temperature most likely
dropped below freezing (32 degrees Farenheit), so the liquid turned into a
solid.
Xander left a glass of room temperature water on his kitchen counter for three
days during March. Describe what most likely happened to the water and why.
The water most likely evaporated. Since it was March, the temperature was
warm enough to turn the non-boiling liquid into a gas.