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Science Review All Standards
Test Description: Practice for review
Instructions: Answer all questions to get your test result.
1) What best describes the direction of Earth's gravitational force?
A
It pulls objects closer to Earth.
B
It pulls objects away from the air.
C
It pulls objects closer together.
D
It keeps objects from getting too close.
2) Which of the following will have the least effect on the motion of a ball?
A
the mass of the ball
B
the direction of the force
C
the strength of the force
D
the weather conditions
3) What does not affect the motion of an object?
A
mass of the object
B
strength of the force
C
direction of a force
D
color of the object
4) The wind blows a piece of paper 5 meters in one second. By the next second, the paper has only traveled 2 meters. What best describes the motion of the paper?
A
It changes direction.
B
It slows down.
C
It stops completely.
D
It speeds up.
5) The air we breathe is mostly
A
carbon dioxide
B
water
C
nitrogen
D
oxygen
6) What percentage of the Earth's surface is covered with oceans?
A
6 %
B
3 %
C
71%
D
51 %
7) If the amount of sunlight increased, how would precipitation rates change?
A
it would decrease
B
it would condense
C
It would increase
D
it would remain the same
8) Fresh water has
A
a low salt content
B
a high salt content
C
zero salt content
D
a medium salt content
9) Which factor would decrease the evaporation rates?
A
decrease in wind
B
increase in wind
C
decrease in sunlight
D
increase in sunlight
10) What is the largest source of fresh water on Earth?
A
glacier
B
estuary
C
ocean
D
lake
11) Francesca has five nickels (each 5 grams) and four dimes (each 2.25 grams) in her change purse. The purse itself has a mass of 150 grams. What is the total mass of the change purse?
A
150 g
B
175 g
C
184 g
D
115 g
12) Francesca has five nickels (each 5 grams)and four dimes (each 2.25 grams)in her change purse. The purse itself has a mass of 150 grams. Francesca spends 45 cents on bubble gum. She uses all of her nickels. What is the mass of her change purse now?
A
156.75 g
B
150 g
C
115 g
D
154.5 g
13) Three mixtures are listed below. Which one could not be separated by evaporation?
A
sawdust and iron fillings
B
iron fillings and water
C
sawdust and water
D
salt and water
14) A 5 gram ice cube melted. How much water resulted?
A
7 g
B
5 g
C
3 g
D
1 g
15) How does the energy from the Sun reach the Earth?
A
conduction
B
thermal convection
C
convection
D
radiation
16) A material that does not conduct thermal energy easily is a(n)
A
conductor
B
radiator
C
metal
D
insulator
17) Which situation best represents conduction?
A
the sun causing evaporation
B
hot gases rising from a fire
C
plastic melting on top of an oven
D
a pot of rapidly boiling water
18) Which of the following would most likely cause rising air?
A
cold air and high pressure
B
warm air and low pressure
C
cold air and low pressure
D
warm air and high pressure
19) Which of the following has the greatest effect on the formation of rain or snow?
A
temperature
B
air pressure
C
cloud cover
D
humidity
20) What happens when two air masses with large differences in pressure meet?
A
wind speed increases
B
wind speed is unpredictable
C
wind speed is not affected
D
wind speed decreases
*select an answer for all questions
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