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science 23

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

The process of a solid becoming a liquid is condensation.

(a)  

2.

Water vapor that changes directly to ice on a surface is called frost.

(a)  

3.

A car is timed around a race track for 8 laps. The laps are numbered in order. Look at the relationship between Lap Number and Lap Time (seconds).


What type of relationship is this?

a)

Direct

b)

Inverse

c)

Diagonal

d)

Horizontal

4.

10) The S.I unit of temperature is

a)

Kelvin

b)

Joules

c)

°C\degree C

d)

°F\degree F

5.

Find the amount of nitrogen present in air?

a)

77%

b)

78%

c)

67%

d)

68%

6.

Air is which type of gaseous material?

a)

Invisible

b)

Visible

c)

Translucently visible

d)

Transparently visible

7.

Which of this process makes a skeleton?

a)

Bones

b)

Cartilages

c)

Both bones and cartilage

d)

None of these

8.

Cutting of trees on large scale is called

a)

Deforestation

b)

Reforestation

c)

Afforestation

d)

None of these

9.

The growing more and more of plants is called

a)

Deforestation

b)

Afforestation

c)

Reforestation

d)

None of these

10.

Part of earth which supports the biodiversity is called

a)

Biosphere

b)

Sanctuary

c)

Ecosystem reserve

d)

Biotic community