Force, Motion, and Energy
Landforms
Magnetism and Electricity
4th Grade Science
Challenge Questions
100
Which labeled part in this picture has evidence of kinetic energy?
3
100
Which of these Earth layers is the thinnest?
A. The inner core
B. The outer core
C. The mantle
D. The crust
D. The crust
100
Toya is sorting energy resources into renewable and nonrenewable groups. Which of these energy resources belongs in the renewable group?
A. Oil
B. Coal
C. Natural Gas
D. Wind energy
D. Wind energy
100
Which of these can be mined from Earth and used as an energy source?
A. Coal
B. Gravel
C. Granite
D. Limestone
A. Coal
100
What describes the process of an igneous rock changing into a sedimentary rock?
A. Compacting or cementing, then heat and pressure
B. Melting and cooling, then heat and pressure
C. Weathering and erosion, then compacting or cementing
D. Crystallizing and cooling, then weathering or erosion
C. Weathering and erosion, then compacting or cementing
200
To describe this car’s motion, a student should use its -
A. direction and speed
B. mass and volume
C. speed and color
D. volume and direction
A. direction and speed
200
Scientists think the energy that causes the movement of Earth's plates is -
A. from the Sun's radiant energy
B. from the thermal energy inside the Earth's mantle
C. released by Earth's North and South poles
D. released by the ocean's thermal energy
B. from the thermal energy inside the Earth's mantle
200
Many electrical wires are wrapped with a plastic coating because plastic is -
A. less expensive than steel
B. more dense than copper
C. able to keep its shape
D. a good insulator
D. a good insulator
200
Which of the following is not needed for a plant to produce its own food?
A. sugar
B. water
C. chlorophyll
D. carbon dioxide
A. sugar
200
A student is investigating the time it takes for different objects to reach the ground after they are dropped. The constant in this investigation is the -
A. time to reach the ground
B. distance from the ground
C. weight of each object
D. object being dropped
B. distance from the ground
300
This bowl of grapes is being pulled down by gravity and pushed up by the table, so it is staying in place. This combination of forces is known as -
A. a machine
B. friction
C. gravitational force
D. net force
D. net force
300
What would happen on the surface of the Earth when plates move as shown by the arrows?
A. trench forms
B. Icebergs are created
C. Mountains form
D. Oceans fill in
C. Mountains form
300
A fan transforms electrical energy into -
A. thermal energy
B. radiant energy
C. mechanical energy
D. chemical energy
C. mechanical energy
300
Kwan used a small electric fan to blow air across a shallow pan of water in order to model the formation of -
A. ocean waves
B. mid-ocean ridges
C. high and low tides
D. deep water currents
A. ocean waves
300
B. Crest
400
A student riding a bicycle observes that it moves faster on a smooth road than on a rough road. This happens because the smooth road has -
A. less gravity
B. more gravity
C. less friction
D. more friction
C. less friction
400
The pictures show how an island changed over time. Which of the following processes most likely caused the island to change?
A. Earthquakes over many days
B. Hurricanes over several months
C. Rain and flooding over several years
D. Weathering and erosion over millions of years
D. Weathering and erosion over millions of years
400
An open circuit -
A. allows the movement of electrical energy
B. can produce thermal energy
C. creates static electricity
D. prevents the movement of electrical energy
D. prevents the movement of electrical energy
400
Which of the following correctly lists the planets in size order, starting with the smallest and ending with the largest?
A. Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, Jupiter
B. Mercury, Venus, Mars, Earth, Jupiter, Neptune, Saturn, Uranus
C. Mars, Mercury, Venus, Earth, Neptune, Uranus, Saturn, Jupiter
D. Earth, Venus, Mars, Mercury, Neptune, Uranus, Saturn, Jupiter
A. Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, Jupiter
400
Students used the circuit shown below to test how well different metals conduct electricity. They used the two clips to connect pieces of different metals to the circuit, one at a time. Then they observed the reading on the meter. Which of the following should be kept constant in this investigation?
A. The thickness of the metal tested
B. The type of metal tested
C. The reading on the meter
D. The battery used for each test
A. The thickness of the metal tested
D. The battery used for each test
500
The conveyor belt moves the groceries by transforming electrical energy into -
A. Thermal energy
B. Radiant energy
C. Mechanical energy
D. Potential energy
C. Mechanical energy
500
When stirred together, which two substances form a solution?
A. sand and salt
B. sugar and water
C. sand and water
D. sugar and water
D. sugar and water
500
The bulb in the diagram is not lit. Where should a wire be added to light the bulb?
A. connecting point Y and Z
B. connecting point W and Y
C. connecting point W and X
D. connecting point Z and W
B. connecting point W to point Y
500
On Earth, we can see a full moon once a month when -
A. the Earth is between the sun and the moon
B. the moon is between the Earth and the sun
C. the sun is between the moon and the Earth
D. the moon is shining its light on the earth
A. the Earth is between the sun and the moon
500
Identify the three scenarios which provide evidence that energy can be transferred between objects.
A. A pot of water boiling after being put on a hot stove
B. Counting the number of pencils on a desk
C. Reading the title of a library book as it sits on a shelf
D. Shooting a basketball during a game
E. Solar panels powering the lights in a house
A. A pot of water boiling after being put on a hot stove
D. Shooting a basketball during a game
E. Solar panels powering the lights in a house