WorksheetsScience Pure Substances and Mixtures - Vocabulary
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
The smallest unit of an element that maintains the properties of that element. The building block of all matter.
a)
atom
b)
compound
c)
mixture
d)
oxygen
2.
The state of matter that has a definite volume but not a definite shape.
a)
liquid
b)
condensation
c)
solid
d)
vaporization
3.
A substance made up of atoms of two or more different elements joined by chemical bonds.
a)
liquid
b)
compound
c)
pure substance
d)
element
4.
the change of stage from a liquid to a gas that usually occurs at the surface of a liquid over a wide range of temperatures.
a)
evaporation
b)
liquefaction
c)
vaporization
d)
element
5.
the change of a state to a liquid.
a)
liquefaction
b)
vaporization
c)
liquid
d)
freezing
6.
the change of a state to a gas.
a)
vaporization
b)
boiling
c)
deposition
d)
liquefaction
7.
the change of state from a liquid to a gas that occurs at a specific temperature.
a)
boiling
b)
liquid
c)
condensation
d)
melting
8.
a sample of matter either a single element or a single compound, that has definite chemical and physical properties.
a)
pure substance
b)
deposition
c)
compound
d)
homogeneous
9.
the change of state from a gas directly to a solid.
a)
deposition
b)
sublimation
c)
melting
d)
solidification
10.
the state of matter that does not have a definite volume or shape.
a)
gas
b)
solid
c)
compound
d)
sublimation
11.
the state of matter that has a definite volume and definite shape (fixed).
a)
solid
b)
solidification
c)
boiling
d)
liquefaction
12.
a substance that cannot be separated or broken down into simpler substances by chemical means.
a)
element
b)
solid
c)
compound
d)
mixture
13.
the change of state from a liquid to a solid.
a)
freezing
b)
mixture
c)
condensation
d)
sublimation
14.
the change of state from a solid directly to a gas.
a)
sublimation
b)
heterogeneous
c)
condensation
d)
pure substance
15.
describes something that does not have a uniform structure or composition throughout.
a)
heterogeneous
b)
condensation
c)
gas
d)
homogeneous
16.
the change of state from a gas to a liquid.
a)
condensation
b)
heterogeneous
c)
evaporation
d)
mixture
17.
a combination of two or more substances that are not chemically combined.
a)
mixture
b)
gas
c)
pure substance
d)
compound
18.
the change of state from a solid to a liquid.
a)
melting
b)
freezing
c)
gas
d)
evaporation
19.
describes something that has a uniform structure or composition throughout.
a)
homogeneous
b)
freezing
c)
heterogeneous
d)
element
20.
the change of state to a solid
a)
solidification
b)
melting
c)
condensation
d)
compound
100 %
