4th E – Learning Class                      Test

 

Basic Science

Topic : Air

Air is a colourless, odourless and tasteless mixture of gases ( oxygen and nitrogen).

 

Air has weight, it occupies space and it is present every where.

 

What is pressure? Pressure is define as the force exerted over a unit surface area. This means that air pressure is the force exerted by air by per unit area.

 

Set Work.

1. Air is present inside

the water (Yes / No)

Give reason why air

is present inside the

water.

2. _______ pressure is

the force exerted by

air.

 

Assignment

1. Write the two gases

that are present in

air.

 

2. Give two reasons

why air has weight

 

 

4th E – Learning Class

Test

 

1. What is factors of

numbers?

 

2. Prime numbers are the

numbers that have

two factors only

number one (1) and

the given number

itself. (True/False)

 

3. Wages can be paid

daily, weekly and

hourly

 

4. Unemployment can

lead to prostitution,

taking of hard drugs

and _____________

 

5. What is technology?

 

6. Write out three

examples of energy

 

7. Potential energy is the

energy at rest

( Yes / No)

 

. Write the plural and

     singular of the

      following pronoun

 

Plural. Singular

8. Me. ________

 

9. _____. Ours

 

10. I. ______

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