1. Al Rowad International School Science Department (4-6)
Girls' section School year 2020 – 2021
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Subject: Science Student Name:
Grade: 6 ( ) Date:
Quarter-4 U3, L2: Energy transfer.
Q1: Choose the letter of the best answer.
1. As water is heated by the sun, it becomes less dense and rises.
What causes the decrease in the density of warming water?
A. The water particles move faster, causing the water to expand.
B. The water particles move slower, causing the water to expand.
C. The water particles move faster, causing the water to
contract.
D. The water particles move slower, causing the water to
contract.
2. During the day, the portions of Earth’s surface that receive
sunlight absorb energy in the form of heat. During the night,
Earth’s surface radiates this energy back into space. What is the
main form of radiation released by Earth at night?
A. Visible light.
B. Gamma rays.
C. Infrared radiation.
D. Ultraviolet radiation.
2. Al Rowad International School Science Department (4-6)
Girls' section School year 2020 – 2021
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3. The picture below shows all three methods of energy transfer.
Which of these correctly identify the three methods of energy
transfer?
A. 1: convection 2: radiation 3: conduction
B. 1: radiation 2: conduction 3: convection
C. 1: conduction 2:convection 3: radiation
D. 1: radiation 2: convection 3: conduction
4. Which of these is not a way in which energy is transferred to
Earth from the sun?
A. Conduction.
B. Infrared radiation.
C. Visible light.
D. X-rays.
5. A plastic spoon that has a temperature of 78o
F is placed into a
bowl of soap that has a temperature of 84o
F. Which of these
correctly describes what will happen?
A. Energy as heat moves from the spoon to the soap.
B. Energy as heat does not move, because the spoon is plastic.
C. Energy as heat moves from the soap to the spoon.
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3. Al Rowad International School Science Department (4-6)
Girls' section School year 2020 – 2021
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D. Energy as heat does not move, because the temperature
difference is too small.
6. Vivian placed an ice cube in a tray of warm water, which
statement describes the energy transfer that happens in Vivian’s
investigation?
A. Energy in the form of heat is transferred from the ice cube to
the water by radiation.
B. Energy in the form of heat is transferred from the water to
the ice cube by radiation.
C. Energy in the form of heat is transferred from the ice cube to
the water by conduction.
D. Energy in the form of heat is transferred from the water to
the ice cube by conduction.
7. Which of the following processes transfers the sun’s energy
between particles as well as through empty space?
A. Radiation only.
B. Conduction only.
C. Convection only.
D. Both conduction and convection.
8. Conduction happens as energy flows from a warmer object to a
cooler object. Which of the following is an example of
conduction?
A. Warmer air is pushed upward and out of the way by cooler air.
B. Electromagnetic radiation transfers energy from the sun to
Earth.
4. Al Rowad International School Science Department (4-6)
Girls' section School year 2020 – 2021
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C. Dense water sinks to the ocean floor and less dense water
moves to the ocean surface.
D. Cooler air molecules come in contact with warm ground, causing
energy to be passed to the air.
Q2.Fill in the blanks with the terms that best completes the
sentences.
1. __________________ is the transfer of energy as
electromagnetic waves.
2. _________________ is the total kinetic energy of
particles.
3. The increase in volume that results from an increase in
temperature is called _________________.
4. ________________ is the transfer of energy due to
the movement of matter.
5. __________________ is the transfer of energy from
one object to another object through direct contact.
