WorksheetsScience Review 4th Grade
Total questions: 58
Worksheet time: 1hrs 8mins
Name
Class
Date
1.
In a forest, owls hunt at night. Mice are the main food of the owls. Which change will most likely happen if there are fewer mice in the forest?
a)
A. The owls will hunt during the day.
b)
B. The owls will have more babies.
c)
C. The number of owls will decrease.
d)
D. The owls will become extinct.
2.
The number of predators in a community depends on what factor?
a)
A. the number of prey
b)
B. the amount of sunlight
c)
C. the amount of rainfall
d)
D. the number of decomposers
3.
Look at this food chain. What would MOST LIKELY happen if the rabbit population suddenly becomes much larger?
a)
A. The clover population would decrease and the coyote population would increase.
b)
B. The clover population would decrease and the coyote population would decrease.
c)
C. The clover population would increase and the coyote population would decrease.
d)
D. he clover population would increase and the coyote population would increase.
4.
What is being shown by the line between the tops of the waves in figure (a)?
a)
Amplitude
b)
Direction
c)
Trough
d)
Wavelegth
5.
Sound travels FASTEST through which of these materials?
a)
Air
b)
Empty space
c)
Metal
d)
Water
6.
An individual living thing is a/an __________.
a)
habitat
b)
ecosystem
c)
organism
d)
population
7.
A group of organisms of the same species living in the same area are called a/an ________.
a)
community
b)
habitat
c)
population
d)
ecosystem
8.
This is an example of what kind of force?
a)
Balanced Force
b)
Pushing Force
c)
Gravity Force
d)
Unbalanced Force
9.
Why does it take someone sledding longer to stop on ice than it does on grass?
a)
The ice makes the friction between the sled and the ground greater.
b)
The ice makes the friction between the sled and the ground less.
c)
All of the above
d)
None of the above
10.
Which is NOT a form of precipitation?
a)
hail
b)
wind
c)
rain
d)
snow
11.
What is true about a mirror's surface?
a)
It refracts light.
b)
It absorbs all light.
c)
It reflects light.
d)
It stores light.
12.
Air passing over vocal cords in the throat causes vibrations. These vibrations produce ________.
a)
heat
b)
wind
c)
light
d)
sound
13.
A greenhouse is a building that protects plants from the cold but allows them to still get sunshine. Which type of material would be the best choice for building a greenhouse?
a)
a transparent material because it allows some of the light to shine through
b)
a translucent material because it allows most of the light to shine through
c)
a transparent material because it allows most of the light to shine through
d)
a translucent material because it allows some of the light to shine through
14.
Which object breaks light down into bands of color?
a)
convex lens
b)
concave lens
c)
prism
d)
magnifying glass
15.
If an electric circuit is left open,
a)
Electricity will flow
b)
Electricity will not flow
c)
Electricity will flow and then stop
16.
A stick of butter is placed in a pot to make macaroni and cheese. The butter melts. What causes the butter to melt?
a)
heat
b)
gravity
c)
light
d)
friction
17.
Opposite magnetic poles will
a)
Attract
b)
Repel
c)
Create friction
d)
Cause the moon phases to change
18.
Which material is transparent?
a)
black cotton cloth
b)
shiny tin foil
c)
white tissue paper
d)
clear plastic wrap
19.
What causes objects, such as apples from an apple tree, to fall to the ground?
a)
friction
b)
air resistance
c)
balanced forces
d)
gravity
20.
Which earth material is used to make electrical wires for buildings?
a)
iron
b)
copper
c)
coal
d)
diamonds
21.
Which of these is a function of a leaf?
a)
a. Carrying nutrients throughout the plant
b)
b. Converting solar energy into sugar
c)
c. Creating shade for the plant
d)
d. Absorbing water from the ground
22.
Which part of a sunflower plant absorbs water and nutrients?
a)
roots
b)
stems
c)
leaves
d)
flower
23.
Pollen is produced in the —
a)
ovary
b)
pistil
c)
stamen
d)
sepal
24.
In a flower, what most likely happens when pollen from the stamen gets into the ovary?
a)
a. The plant dies.
b)
b. A seed develops.
c)
c. The flower closes.
d)
d. The sepals fall off.
25.
Which gas is given off by plants?
a)
hydrogen
b)
nitrogen
c)
helium
d)
oxygen
26.
Which of these best completes a circuit?
a)
metal nail
b)
leather shoelace
c)
rubber band
d)
wooden toothpick
27.
Electric lights will not come on unless their electrical circuit is a
a)
parallel circuit
b)
open circuit
c)
series circuit
d)
closed circuit
28.
Copper wire is often wrapped in plastic. Plastic material is a good
a)
electromagnet
b)
insulator
c)
conductor
d)
current
29.
What kind of energy do all moving objects have?
a)
light energy
b)
kinetic energy
c)
potential energy
d)
solar energy
30.
A bicyclist rides on a flat road and then stops pedaling but does not apply the brakes. The bicycle stops because of
a)
friction
b)
balance
c)
magnetism
d)
attraction
31.
What is deposition?
a)
The laying down of pieces of rock and soil
b)
when the ground shakes
32.
What is an earthquake?
a)
a sudden movement that makes the earth shake
b)
the rapid downhill movement of dirt and rock
33.
What is erosion?
a)
the movement of weathered materials
b)
a break or crack where the earth's crust can move
34.
What is a landslide?
a)
rapid downhill movement of rock and soil
b)
a waterfall
35.
What is a volcano?
a)
A place on Earth where magma reaches the surface
b)
the rapid downhill movement of soil
36.
What is weathering?
a)
the process that breaks down rocks into smaller pieces
b)
the laying down of pieces of rock
37.
What happened to this rock?
a)
ice wedging
b)
root wedging
38.
When lava is still under the earth's surface, it is called
a)
magma
b)
slime
39.
The age of rocks and geologic features compared with other rocks and features nearby
a)
unconformity
b)
superposition
c)
absolute age
d)
relative age
40.
Which rock layer in this figure is the oldest?
a)
Rock layer F
b)
Rock layer B
c)
Rock layer R
41.
Which rock layer in this figure is the youngest?
a)
Rock layer F
b)
Rock layer I
c)
Rock layer R
42.
According to the law of superposition, the oldest fossils are found
a)
At the top of the rock layers
b)
Near the bottom of the rock layers
c)
In the middle of the rock layers
d)
Somewhat near the surface
43.
Which of the following is not a natural disaster?
a)
tornado
b)
hurricane
c)
tsunami
d)
car accident
44.
Giant storms that begin at sea and sometimes crash into land are called?
a)
hurricanes
b)
tornadoes
c)
avalanches
d)
mudslides
45.
Giant ocean-going waves that are caused by an underwater earthquake or volcanic eruptions are called?
a)
hurricanes
b)
volcanoes
c)
tsunamis
d)
tornadoes
46.
What is this natural disaster?
a)
Huricane
b)
Landslide
c)
Earthquake
d)
Avalanche
47.
Name the natural disaster
a)
Earthquake
b)
Tsunami
c)
Avalanche
d)
Hurricane
48.
Name the natural disaster
a)
Hurricane
b)
Tsunami
c)
Wildfire
d)
Landslide
49.
Name the natural disaster
a)
Landslide
b)
Avalanche
c)
Tsunami
d)
hurricane
50.
Name the natural disaster
a)
earthquake
b)
landslide
c)
avalanche
d)
hurricane
51.
Name this natural disaster
a)
Volcano
b)
Wildfire
c)
Landslide
d)
Tsunami
52.
What is the center of a hurricane called?
a)
The Opening
b)
The Eye
c)
The Middle
53.
What happens during a landslide
a)
snow and ice slide down a mountain
b)
lots of dirt slides down a mountain
c)
magma explodes
d)
an earthquake happens under water
54.
An animal's color or pattern that helps it blend into its surroundings
a)
Environment
b)
Mimicry
c)
Camouflage
d)
Habitat
55.
The ears of this fox are an example of...
a)
A behavioral adaptation
b)
Poor breeding
c)
A physical adaptation
d)
Plastic surgery gone horribly wrong
56.
When an animal looks like another animal it is called ______________.
a)
camouflage
b)
mimicry
c)
warning coloration
d)
protective resemblance
57.
The environment in which an animal lives is called its...
a)
habitat
b)
adaptation
c)
variation
d)
relatedness
58.
What would a bird's foot look like if it spent its time in the water?
a)
Sharp talons and claws
b)
Short stubby toes
c)
Webbing between the toes
d)
Long graceful fingers
100 %
