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WorksheetsScience Review
Total questions: 14
Worksheet time: 28mins
Name
Class
Date
1.
Bruce thinks that a rough surface has more friction than a smooth surface. He tests this by rolling spheres across surfaces, measuring the distance they travel after being pushed by a certain amount of force. What is the Independent Variable?
a)
Different types of spheres
b)
Different amounts of force
c)
Different textured surfaces
d)
Different angle of the ramp
2.
Which of these statements correctly describes the forces acting on this statue?
a)
The downward force of gravity affects the statue more than the table.
b)
The downward force of gravity on the statue is balanced by the upward force of the table on the statue.
c)
Gravity pushes down on the statue with a force greater than the upward force from the table.
d)
Gravity pulls the table down and pushes the statue up.
3.
In plants, opening in the leaves called stomata exchange gases with the enviroment. An organ system with a similar function in many animals is the...
a)
Nervous
b)
Cardiovascular
c)
Respiratory
d)
Integumentary
4.
Which best describes what is happening to the light?
a)
Diffracted
b)
Diffused
c)
Reflected
d)
Refracted
5.
Which will have the greatest acceleration if acted upon by a net force of 150 N?
a)
2 kg object
b)
11 kg object
c)
45 kg object
d)
100 kg object
6.
Fish are able to survive in aquatic habitats due to
a)
Their ability to swim to the surface to breath
b)
Special structures adapted to obtain dissolved oxygen
c)
Their ability to change colors
d)
Special structures adapted to allow quick movements
7.
Terell placed two objects on s balance scale to measure their mass... Object 1 had a greater mass than object 2. What conclusion can he make?
a)
There is less material in object 1 than object 2
b)
There is more material in object 1 than object 2
c)
They both have the same amount of material
d)
There can be no conclusion
8.
Which is soluble in water?
a)
Metal Shavings
b)
Sand
c)
Sugar
d)
Chalk Powder
9.
Sound does not travel through space because sound waves
a)
can only travel through gases like air
b)
expand out in circles rather than straight lines
c)
cannot move through places that are too dark
d)
must move through a substance to transfer energy
10.
In a tug of war game, balanced forces are best represented when both teams cause the flag to
a)
fall to the ground
b)
stay in the middle
c)
move slowly in one direction
d)
be pulled quickly in one direction
11.
Pulleys use a wheel and a rope to lift heavy loads. How do they make it easier?
a)
by altering the mass of the object
b)
by altering the frictional force in the rope
c)
by changing the direction of the applied force
d)
by changing the amount of gravity on the load
12.
What most likely happens when a cold air mass comes into contact with a warm air mass?
a)
The sky becomes clear
b)
Rain of snow begins to fall
c)
Cold air is pushed to high altitudes
d)
warm air is pushed to ground level
13.
A commercial ice pack has to be smashed before it can be used. This is a chemical reaction because of what evidence?
a)
Releasing heat
b)
Absorbing heat
c)
Emitting light
d)
Absorbing sound
14.
When rain washes chemical fertilizers from farms and lawns into lakes, the water quality is affected. Do chemical fertilizers help or harm a lake's water quality?
a)
Help - fertilizers become food for fish
b)
Help - fertilizers keep the water clearer
c)
Harm - fertilizers stain the water
d)
Harm - fertilizers cause too much lake plant growth
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