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Science 7 -- Semester Preview

Total questions: 13

Worksheet time: 21mins

Name
Class
Date
1.
How wells dry out?
a)
ground water is removed slowly than it replaced
b)
ground water get trapped in an aquifer
c)
ground water is removed more quickly than it is replaced
d)
ground water becomes contaminated with pollutants
2.

The processes in which water vapor (a gas) in the air turns into liquid water

a)

Condensation

b)

Evaporation

c)

Precipitation

d)

Transpiration

3.

Which part of the image of rocks will hold more water?

a)

Right

b)

Left

c)

Center

4.

What is the process happening at #3

a)

Evaporation

b)

Precipitation

c)

Condensation

d)

Transpiration

5.
What is the term for combining 2 or more atoms together?
a)
atoms
b)
elements
c)
molecules
d)
compounds
6.
What is the term for combining 2 or more DIFFERENT atoms together?
a)
atoms
b)
elements
c)
molecules
d)
compounds
7.

Which of the following is a chemical formula?

a)

H2SO4

b)

Si

c)

Hg

d)

C

8.

Which of the following is not a natural cause of water pollution?

a)

Volcanoes

b)

Animal waste

c)

Oil spills

d)

Silt from storms and floods

9.
TRUE or FALSE. Many people on Earth do not have accces to clean water.
a)
TRUE
b)
FALSE
10.

An underground water supply is...

a)

erosion

b)

river

c)

water shed

d)

aquifer

11.

Pollution traced to a single point

a)

water shed

b)

permeable

c)

point source pollution

d)

non-point source pollution

12.

Allowing liquids to pass through, such as water through the ground

a)

permeable

b)

pollution

c)

impermeable

d)

yup, you know it

13.

Small particles that is made up rocks, soil

a)

river basin

b)

impermeable

c)

water

d)

sediment