Precipitation

Q.

Name the process through which plants release water vapour into the atmosphere. [1 MARK]

Q. Water vapour gets added to air by evaporation and transpiration.

1. True
2. False

Q. When we open a bottle of cold drink, we see bubbles coming out. Where have these bubbles come from ?
​​​​​​

Q. Rain water harvesting is a method employed to:

1. Prevent soil erosion
2. Raise the water table
3. Increase rainfall
4. Decrease flooding

Q. Cloud seeding is a technique that induces rain. What does the process involve?

1. Adopting an agricultural practice that depends on clouds.
2. Introducing particles in clouds to facilitate condensation.
3. Making clouds and placing them in the sky.
4. Scattering clouds to form seed like structrues.

Q.

2. Name two main processes which transfer water present on the earth into water vapor continuously.

Q.

______________ is a region where two or more bones meet.

1. Joint

2. Muscle

3. Mouth

4. Blood

Q.

Precipitation is the product of condensation.

1. True

2. False

Q. Rain, freezing rain, and sleet all are forms of precipitation.

1. True
2. False

Q.

A cloud is unable to hold droplets of water because

1. They become heavier.

2. They become lighter.

3. They undergo condensation slowly.

4. They undergo sublimation.

Q.

What does the process of cloud seeding involve?

1. Making clouds and placing them in the sky

2. Scattering clouds to form seed like structrues.

3. Adopting an agricultural practice that depends on clouds
   

4. Introducing particles in clouds to facilitate condensation

Q.

Question 4

(a) Some of the gases are easily soluble in water. True or False?

(b) Name of gas that is easily soluble in water (HINT: this gas is essential for breathing).

Q.
Shown above is a snowman made by Joshua. It contains water in the form of:

1. gas
2. solid
3. liquid
4. steam

Q.

Identify the processes A, B and C with respect to the following figure:

1. A –Precipitation, B – Condensation, C – Evaporation

2. A –Condensation, B – Evaporation, C – Precipitation

3. A – Evaporation, B – Condensation, C – Precipitation

4. A –Precipitation, B – Evaporation, C – Condensation

Q.

10. Which one is a process involving the change of water into vapors in atmosphere?

1. Evaporation

2. Transpiration

3. Precipitation

4. Condensation

Q.

13. Copy out the following table and write an example of a mixture in each empty box.
For example, coffee is a mixture of a solid and a liquid.

	Solid	Liquid	Gas
Solid		Coffee
Liquid
Gas

Q. Clouds are unable to hold droplets of water beyond a limit because:

1. They become heavier.
2. They become lighter.
3. They undergo condensation slowly.
4. They undergo sublimation.

Q.

Snow is a mass of fine water droplets in the atmosphere near or in contact with the earth.

1. True
2. False

Q.

Sea water contains dissolved____ in it, hence it cannot be used for____.

Q. The expiry date on packaged drinking bottles is for:

1. The water
2. The bottle
3. (a) and (b) above.
4. None of the above

Q.

Question 4

(a) Some of the gases are easily soluble in water. True or False.

(b) Name of gas that is easily soluble in water (HINT: this gas is present in fizzy drinks).

Q. Choose the most commom type of precipitation.

1. Sleet
2. Rain
3. Hail
4. Snow

Q. In which of the following seasons does rain occurs as snow?

1. Summer
2. Winter
3. Fall
4. Spring

Q. Prove the following statement: ‘Air is a mixture’. [2 MARKS]

Q. What is the aim of water harvesting?

Q.

Identify the processes that could be A, B and C with respect to the following figure:

1. A –Precipitation, B – Condensation, C – Evaporation

2. A –Condensation, B – Evaporation, C – Precipitation

3. A –Precipitation, B – Evaporation, C – Condensation

4. A – Evaporation, B – Condensation, C – Precipitation

Q.

3(b). List the conditions which can lead to condensation.

Q. Which of these processes does not occur in the natural water cycle?
(a) evaporation
(b) condensation
(c) boiling
(d) precipitation

Q. Seeding clouds was started in

1. 1950
2. 1946
3. 2000
4. 1814

Q.

Question 3

(a) Some of the gases are easily soluble in water. True or False?

(b) Name of gas that is easily soluble in water (HINT: this gas is essential for breathing).