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Science Challenge

Total questions: 8

Worksheet time: 4mins

Name
Class
Date
1.

What is the flow of electric charge called?

a)

charge stream

b)

electricity flow

c)

power movement

d)

electric current

2.

Which gas makes up the majority of Earth's atmosphere?

a)

Argon

b)

Nitrogen

c)

Carbon dioxide

d)

Oxygen

3.

What is the unit of electric current?

a)

Ampere (A)

b)

Ohm

c)

Volt

d)

Joule

4.

What is the layer of the atmosphere where weather occurs?

a)

mesosphere

b)

ionosphere

c)

troposphere

d)

stratosphere

5.

What is the process of electricity moving through a conductor called?

a)

conductive flow

b)

electric current

c)

electric flow

d)

power stream

6.

Which layer of the atmosphere protects us from harmful UV rays?

a)

Exosphere

b)

Stratosphere

c)

Troposphere

d)

Mesosphere

7.

What is the SI unit of electric potential difference?

a)

joule

b)

ohm

c)

ampere

d)

volt

8.

What is the outermost layer of the Earth's atmosphere called?

a)

Mesosphere

b)

Thermosphere

c)

Exosphere

d)

Troposphere