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Science SA Reviewer 4.1

Total questions: 29

Worksheet time: 39mins

Name
Class
Date
1.
Which of the following is NOT one of the three layers of soil?
a)
topsoil
b)
undersoil
c)
subsoil
d)
bedrock
2.
Which of the following is NOT one of the three types of soil?
a)
clay
b)
sand
c)
silt
d)
mud
3.
_______ is the type of soil used most often with plants. It is a mixture of clay, sand, and silt.
a)
loam
b)
humus
c)
mud
d)
dirt
4.
You dig a small hole in the soil and the next day it rains. The hole fills with water, but does not empty even after several days of dry weather. What is the soil mostly made of?
a)
clay
b)
sand
c)
humus
d)
silt
5.
Many plants cannot grow in sandy soil. Why is this true?
a)
Sandy soil does not hold enough water.
b)
Oxygen cannot pass through sandy soil.
c)
Roots cannot easily push through clay soil.
d)
Sandy soil has too many nutrients.
6.

Which of the following best describes soil erosion?

a)

the breakdown of soil

b)

the improvement of soil

c)

the addition of soil

d)

the movement of soil by wind or water

7.
Soil is made of
a)
weathered rocks and minerals
b)
dead plants and animals
c)
air and water
d)
all of the above
8.
The breaking down of rocks into smaller pieces.
a)
erosion
b)
weathering
c)
sediment
d)
sand
9.

Soil formation begins with the weathering of_______.

a)

Humus

b)

Subsoil

c)

Litter

d)

Bedrock

10.

Which of the following is not included in the water cycle processes?

a)

condensation

b)

disintegration

c)

evaporation

d)

precipitation

11.

Which type of soil can hold the greatest amount of water?

a)

loam

b)

sand

c)

clay

d)

silt

12.

97% of water is salt water.

a)

True

b)

False

13.

The water part of the Earth is called __________.

a)

Lithosphere

b)

Hydrosphere

c)

Biosphere

14.
Snow, sleet, hail, and rain are all examples of  ________________. 
a)
evaporation
b)
condensation
c)
accumulation
d)
precipitation
15.

Which fluffy, white clouds with flat bottoms are usually present during fair weather?

a)

Cumulonimbus

b)

Cumulus

c)

Cirrus

d)

Stratus

16.

Which weather instrument measures rainfall?

a)

Anemometer

b)

Thermometer

c)

Rain gauge

d)

Barometer

17.

Which weather instrument measures wind speed?

a)

Anemometer

b)

Thermometer

c)

Rain gauge

d)

Barometer

18.

After a rain, a puddle of water remains on a sidewalk. After a day of sunshine, the puddle is gone. Which process is most responsible for the disappearance of the puddle?

a)

Precipitation

b)

Condensation

c)

Evaporation

d)

Transpiration

19.

We measure precipitation in __________.

a)

degree celsius

b)

speed

c)

direction

d)

milliliters

20.

What is climate?

a)

A tool to measure wind speed

b)

The average weather conditions for a certain region

c)

The force exerted by air onto the Earth

21.

People who study weather are called _________.

a)

Doctors

b)

Architects

c)

Meteorologists

d)

Archaeologists

22.

We measure temperature in _____________.

a)

milliliters

b)

degree celsius

c)

speed

d)

direction

23.

Which is the largest object in our solar system?

a)

Moon

b)

Mars

c)

Venus

d)

Sun

24.
The sun is a _______.
a)
star
b)
planet
c)
satellite
25.
The earth rotates or spins once every ___________.
a)
30 days
b)
24 hours
c)
year
26.

What makes up the sun?

a)

light and heat

b)

rocks

c)

heat and gases

d)

lava

27.

What does the Sun provide for Earth?

a)

Thermal and Light Energy

b)

Light

c)

Heat

d)

Water

28.

Finish the sentence "The Sun is Earth's...

a)

... closest Star."

b)

...coldest place."

c)

...ONLY energy source."

d)

... planet."

29.

All of the following are characteristics of the Sun EXCEPT:

a)

provides light and energy

b)

Is made of gases

c)

is composed of rock.

d)

is a medium-sized star.

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