4th Grade 3rd 6 Weeks Test Review

A student places an ice cube and glass marble in a container of water. Which statement best explains what will happen?

• The ice cube will sink in water, and the glass marble will float in water.
• The ice cube will float in water, and the glass marble will sink in water.
• The ice cube and the glass marble will both float in water.

Which statement best describes the two temperatures represented in the images?

• The temperature of the ice water is higher than the temperature of the warm
• The temperature of the ice water is lower than the temperature of the warm
• The temperature of the ice water and warm water is the same.

What example of matter would complete the chart?

• Metal toy boat 
• Plastic car 
• Steel block

Both sound and light are forms of energy. Which of the following statements is NOT true? 

• They both travel as waves.
• They both travel away from their source.
• They both can travel through space.

What form of energy causes ice to melt?

• Sound energy
• Light energy
• Thermal energy

Which form of energy makes the room brighter when a lamp is switched on?

• Sound energy
• Electrical energy
• Light energy

Riding a bicycle and moving gears are both examples of this type of energy. 

• Thermal energy
• Sound energy
• Mechanical energy

This energy is produced by electrons running through a substance that lights homes, runs motors, and makes radios work.

• Light energy
• Sound energy
• Electrical energy

Which of the following is a correct conclusion about the type of energy being used to move a motor with a fan?

• When the motor moves mechanical energy is used.
• The light energy from the room causes the motor to move.
• Heat energy transferred from the gears causes the motor to move.

Which of the following is the best example of a student using electrical energy?

• Using scissors to cut a piece of yarn
• Writing down the homework assignment
• Turning on the light in the classroom