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Worksheetsscience 2c
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
You feel ........... when you rub your hands.
a)
Cold
b)
Warm
2.
You.................see electricity while traveling through wires.
a)
Can't
b)
Can
3.
................. help on burning.
a)
Carbon dioxide
b)
Oxygen
4.
Air consists of oxygen and............... and other gases.
a)
Nitrogen
b)
Water
5.
Oxygen is...........% of air.
a)
21
b)
78
6.
Oxygen is............. than air.
a)
Heavier
b)
Lighter
7.
Carbon dioxide is................
a)
Colorful
b)
Colorless
8.
Knocking on the door is .......
a)
Heat energy
b)
Sound energy
9.
The main source of heat is............
a)
Sun
b)
Moon
10.
Electricity travels through...........
a)
Air
b)
Electric wire
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