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