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WorksheetsCH 4 Environmental Science
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
When two or more substances are combined so each substance can be separated by physical means, the result is a(n)____.
a)
chemical change
b)
element
c)
compound
d)
mixture
2.
The scattering of light by colloids is called ____.
a)
air pollution
b)
suspension
c)
conservation
d)
The Tyndall effect
3.
Matter that has a definite volume and a definite shape is a ____.
a)
solid
b)
plasma
c)
liquid
d)
gas
4.
Matter in which atoms are tightly held in place is a ____.
a)
gas
b)
plasma
c)
solid
d)
liquid
5.
A gas-like mixture with no definite volume or shape that is made up of positively and negatively charged particles is a ____.
a)
solid
b)
gas
c)
liquid
d)
plasma
6.
Matter with no definite volume and no definite shape is a ____.
a)
solid
b)
liquid
c)
gas
d)
plasma
7.
Matter that has a definite volume but no definite shape is a ____.
a)
liquid
b)
solid
c)
plasma
d)
gas
8.
Matter in which the particles are free to move in all directions until they have spread evenly throughout their container is a ____.
a)
plasma
b)
liquid
c)
solid
d)
gas
9.
Most matter ____ when heated.
a)
condenses
b)
solidifies
c)
expands
d)
contracts
10.
The theoretical point at which all molecular motion stops is called ____.
a)
the boiling point
b)
the melting point
c)
absolute zero
d)
the frozen point
11.
As a sample of matter is heated, its particles ____. a. c. b. d.
a)
are unaffected
b)
move more quickly
c)
move more slowly
d)
stop moving
12.
The most common state of matter in the universe is ____.
a)
gas
b)
plasma
c)
liquid
d)
solid
13.
Atoms of the same element with different numbers of neutrons are called ____.
a)
isotopes
b)
metalloids
c)
radioactive elements
d)
metals
14.
A particle that moves around the nucleus is a(n) ____.
a)
quark
b)
proton
c)
neutron
d)
electron
15.
A ____ is used to accelerate protons in the study of subatomic particles.
a)
television
b)
termanite
c)
technology
d)
tevatron
16.
A certain atom has 26 protons, 26 electrons, and 30 neutrons. Its mass number is ____.
a)
30
b)
26
c)
52
d)
56
17.
______ is a process used to solve problems of develop an understanding of nature that involves testing possible answers.
a)
hypothesis
b)
science
c)
experiments
d)
conclusion
18.
___ have a pH between 7 and 14.
a)
colloid
b)
acid
c)
base
d)
neutral
19.
____ have a pH between 1 and 7.
a)
colloid
b)
acid
c)
base
d)
neutral
20.
Heat that is added or subtracted during a change of state is ____.
a)
hidden
b)
latent
c)
latin
d)
sensible
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