4th Grade Science

1
4th Grade Science

• CATS Review

2
Billy and Donovan went on a fossil dig together.
They each found a fossil right next to each
other. Billy found a dinosaur fossil, and Donovan
found a human fossil. How is this possible?

• Someone moved one of the fossils there before
  Billy and Donovan got there.
• Humans have been around since the dinosaurs.
• The layers of the ground might have shifted.
• It's not possible.

3
Which of the following is a common use of rock
today?

• to make kites fly
• to make boats
• to make airplanes
• to build buildings

4
Which of the following statements is true?

• None of the planets in our solar system revolve
  around the Sun.
• All the planets in our solar system revolve
  around the Sun.
• Earth is the only planet in our solar system that
  revolves around the Sun.
• Only the 4 planets closest to the sun revolve
  around the Sun.

5
This table shows daily high temperatures in May
for 4 major US cities. About what would you
expect the high temperature to be in Chicago on
May 15?

• 18C
• 20C
• 15C
• 25C

6
All sounds are produced

• by living things.
• by people.
• by vibrations.
• by light.

7
Look at the diagram for the days Monday through
Thursday. Choose the best description of the
relationship between temperature and pressure for
those days.

• As the pressure rose, the temperature dropped.
• As the temperature rose, the pressure remained
  the same.
• As the temperature rose, the pressure dropped.
• As the pressure rose, the temperature remained
  the same.

8
The picture below shows an interesting rock
formation.
What could have caused the rocks to be round and
smooth, instead of pointy and jagged?

• erosion from wind or water
• animals chewing on the rocks
• a saw
• an earthquake

9
What evidence do scientists have that some
extinct animals existed thousands of years ago?

• rock formations
• photographs
• fossils
• all of these

10
Is steam a solid, a liquid, or a gas?

• liquid
• gas
• none of these
• solid

11
What is the function of the plant part that is
pointed out in the picture below?

• to collect water for photosynthesis
• to attract insects for pollination
• to collect sunlight for photosynthesis
• to hold the plant in the ground

12
 Leonard is learning about what happens as the
seasons change. What is a visible sign that
summer is changing to fall?

• Leaves begin to change color.
• The days get longer.
• An eclipse of the sun happens.
• The days get warmer.

13
In the ocean, phytoplankton use sunlight to make
food. They are an example of a ________ in a food
chain.

• producer
• predator
• bottom feeder
• decomposer

14
In which picture(s) will these bar magnets
attract each other?
w
x
y
z

• w and x
• x only
• z and y
• z only

15
A certain plant has thick, pod-like leaves like
those shown below. The leaves can store water for
long periods of time.
In which of the following environments would this
kind of leaf be MOST helpful to the plant for
survival?

• desert
• deep ocean
• wetland
• forest

16
Neil's plant is withering, but it is still green.
What does his plant probably need that it is
not getting?

• air
• water
• sunlight
• food

17
Aunt Martha has a new stove in her home. When she
cooks dinner, Sarah notices that the burner
becomes very hot. The metal pan on the burner
also gets hot. What causes the pan to become hot?

• The air around the pan conducts heat.
• The metal pan conducts heat from the burner.
• The pan's plastic handle conducts heat from the
  burner.
• The color of the stove conducts heat.

18
From where does the Earth get heat and light
energy?

• the Sun
• the Moon
• light bulbs
• water

19
The three main components of soil are

• sand, clay, and humus.
• salt, clay, and humus.
• humus, water, and salt.
• sand, clay, and water.

20
Which of these best completes this concept map
about changing states of matter?

• heat
• sound
• magnetism
• freezing

21
Which of the following is an inherited trait?

• liking spaghetti
• disliking pizza
• blue eyes
• long hair

22
 During a heavy thunderstorm, rocks and soil slid
down a hill and blocked traffic on a highway.
This is an example of

• weathering.
• flooding.
• a landslide.
• an avalanche.

23
Which is a way that Earth's moon moves?

• It moves randomly around the solar system.
• It rotates on its axis.
• It does not move.
• It revolves around Venus.

24
Carlos visits his grandmother's farm every
summer. He likes to go down to the river and
fish. Carlos has noticed a change in the river
over the past few years. It seems to have gotten
wider. What could have caused this river to
become wider?

• volcanic activity
• earthquakes
• water pollution
• erosion

25
A __________ is made up of __________.

• mineral rocks
• crystal rocks
• mineral crystals
• rock minerals

26
Which of the following pictures correctly shows
the fox's shadow created by the position of the
Moon?
z
x
y

• x
• y
• z

27
During the morning, the shadow from a tall tree
could be seen in which direction?

• South
• It would not have a shadow.
• West
• East

28
Each picture shows a battery, a bulb, and a
switch. Which bulb will light when the switch is
closed?

• Z
• W
• X
• Y

29
The first figure shows a cross-section of how
this river looked one hundred years ago. The
other shows a cross-section of how the river
looked two years ago. Why did the river change?

• A beaver built a dam on the river
• The river carried the sand and soil away.
• A volcano erupted and formed a valley.
• An earthquake made the land drop.

30
 Sarah is trying to push a box across the garage
floor.
In which direction will the box move when she
pushes it?

• direction 3
• direction
• direction 2
• direction 4

31
Which of these pictures accurately shows how the
light beam would reflect off of a flat mirror?

• 2
• 3
• 4
• 1