Year 4 Science

The picture shows a lamp giving off light. What form of energy does the lamp use to produce light?

• Thermal

• Mechanical

• Electrical

• Light

Which of the following is NOT an example of renewable energy?

• Sun

• Water

• Petroleum

• Wind

What is the inference for the occurrence in the picture below?

• The rotation of Earth on its axis.

• The revolution of Moon around the Earth.

• The revolution of Earth around the Sun.

• Rotation of Moon on its axis.

Tags

NGSS.MS-ESS1-1

A simple device that opens and closes an electric circuit is called a/an _________.

• Light bulb

• Dry cell

• Switch

• Power source

Revolution of Earth around the Sun in its orbit is in _______ direction.

• Anticlockwise

• Clockwise

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

Which of the following is a gas that absorbed by the plants in the photosynthesis process.

• Nitrogen

• Oxygen

• Chlorophyll

• Carbon dioxide

Tags

NGSS.MS-LS1-6

Leaves look green because ______.

• to blend into their environment

• they cannot grow well

• they contain chlorophyll

• the plant is withered

Tags

NGSS.MS-LS1-6

Which form of energy is produced when a guitar string vibrates?

• Light energy

• Wind energy

• Sound energy

• Electrical energy

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Choose the correct passage air during inhalation process.

• Lungs - Trachea - Nose

• Lungs - Nose - Trachea

• Nose - Trachea - Lungs

• Nose - Lungs - Trachea

Why are metals very useful for making electrical wire?

• Metals do not bend.

• Metals are conductors.

• Metals are light.

• Metals hold much heat.