# Tamil Nadu Board Samacheer Kalvi solutions for Class 4th Science Term 2 Answers Guide chapter 2 - Water [Latest edition]

## Chapter 2: Water

Let us do [Pages 69 - 71]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 4th Science Term 2 Answers Guide Chapter 2 WaterLet us do [Pages 69 - 71]

Let us do | Q 1 | Page 69

See the given pictures and write down the state of each object. (Solid, Liquid, Gas)

 _____ ______ ______ ______ ______ ______ _______ ______ ______ ______
Let us do | Q 2 | Page 70

Fill in the boxes given below with correct answers.

(Liquid, Solid, Melting, Freezing, Cooling, Heating, Gas)

Change of Status in water

Let us do | Q 3 | Page 71

Write any two water bodies in your area. ____, ____.

### Tamil Nadu Board Samacheer Kalvi solutions for Class 4th Science Term 2 Answers Guide Chapter 2 WaterTry to Answer [Page 71]

Try to Answer | Q 1 | Page 71

Why water is a good example for all states of matter?

Try to Answer | Q 2 | Page 71

Which of the following is in a liquid state?

• Rain

• Ice

• Snow

Let us do [Page 71]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 4th Science Term 2 Answers Guide Chapter 2 WaterLet us do [Page 71]

Let us do | Q 1 | Page 71

Fill water in an ice tray and keep it in the freezer.
After few hours, take it out. What happened to the water?

Let us do | Q 2 | Page 71

Now keep this ice tray on a table for some time.
What happens to the ice?

Let us do | Q 3 | Page 71

Pour water from the ice tray into a kettle. Ask an elder at your home to heat the kettle and observe the mouth of the kettle when the water starts boiling.
What do you see?

### Tamil Nadu Board Samacheer Kalvi solutions for Class 4th Science Term 2 Answers Guide Chapter 2 WaterThink and answer [Page 72]

Think and answer | Q 1 | Page 72

What happens to the water in a wet cloth?

### Tamil Nadu Board Samacheer Kalvi solutions for Class 4th Science Term 2 Answers Guide Chapter 2 WaterTry to Answer [Page 72]

Try to Answer | Q 1 | Page 72

In the water cycle _____

• only evaporation is involved

• only condensation is involved

• evaporation and condensation are involved

### Tamil Nadu Board Samacheer Kalvi solutions for Class 4th Science Term 2 Answers Guide Chapter 2 WaterTry to Answer [Page 73]

#### fill in the blanks.

Try to Answer | Q 1 | Page 73

Unscramble the words and fill in the blanks.

• ondencsaonti ______
• vaeionorpat ______
• ecippitatrino ______
Try to Answer | Q 2 | Page 73

Is water cycle important for farming? _______

Try to Answer | Q 3 | Page 73

Why is water cycle important to human?

Try to Answer | Q 4 | Page 73

Name the process which is responsible for the formation of droplets on the surface of a glass of cold drink. _______

### Tamil Nadu Board Samacheer Kalvi solutions for Class 4th Science Term 2 Answers Guide Chapter 2 WaterTry to Answer [Page 74]

Try to Answer | Q 1 | Page 74

List out some other benefits of rain water harvesting.

Try to Answer | Q 2 | Page 74

Suggest some ideas to save rainwater in your school.

Let us do [Page 74]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 4th Science Term 2 Answers Guide Chapter 2 WaterLet us do [Page 74]

Let us do | Q 1 | Page 74

Rain water harvesting has an important role to protect our environment.

Evaluation [Pages 75 - 76]

### Tamil Nadu Board Samacheer Kalvi solutions for Class 4th Science Term 2 Answers Guide Chapter 2 WaterEvaluation [Pages 75 - 76]

Evaluation | Q I. 1. | Page 75

Water is the most ________ resource on the Earth.

• precious

• solid

• gas

Evaluation | Q I. 2. | Page 75

Water exists in ____ states.

• two

• three

• four

Evaluation | Q I. 3. | Page 75

At temperature below _______ water freezes to form ice.

• 10º C

• 100º C

• 0º C

Evaluation | Q I. 4. | Page 75

______ is the process by which water becomes water vapour.

• Condensation

• Evaporation

• Freezing

Evaluation | Q I. 5. | Page 75

Which controls the ecological functions of life?

• Bicycle

• Water cycle

• Recycle water

#### Fill in the blanks with suitable answer.

Evaluation | Q II. 1. | Page 75

Water is converted into _______ when it is heated

• ice cube

• water vapour

Evaluation | Q II. 2. | Page 75

Water becomes ice on ______.

• heating

• Freezing

Evaluation | Q II. 3. | Page 75

Water droplets Combines to forms _____.

• rain

• clouds

Evaluation | Q II. 4. | Page 75

Water cycle increases the availability of _______.

• water tank

• ground water

Evaluation | Q II. 5. | Page 75

_____ is a type of rainwater harvesting.

• Roof top harvesting

• Watercycle

#### Write True or False.

Evaluation | Q III. 1. | Page 75

Water is a good example for all states of matter.

• True

• False

Evaluation | Q III. 2. | Page 75

Water cycle controls Earth‛s temperature.

• True

• False

Evaluation | Q III. 3. | Page 75

Water becoming water vapour on heating is called evaporation.

• True

• False

Evaluation | Q III. 4. | Page 75

37% of our brain‛s mass consists of water.

• True

• False

Evaluation | Q III. 5. | Page 75

Roof top harvesting method is used in the agriculture field.

• True

• False

Evaluation | Q IV. 1. | Page 76

Write the states of water.

Evaluation | Q IV. 2. | Page 76

What is freezing?

Evaluation | Q IV. 3. | Page 76

Name the processes involved in the water cycle.

Evaluation | Q IV. 4. | Page 76

Which state government made rain water harvesting mandatory in the year 2001?

Evaluation | Q IV. 5. | Page 76

What is needed to construct a rain water harvesting pit?

Evaluation | Q V. 1. | Page 76

What is water cycle? Write any three importances of water cycle.

Evaluation | Q V. 2. | Page 76

What is rain water harvesting? List out the advantages of rain water harvesting.

Evaluation | Q VI. | Page 76

Colour the given picture and write the correct name in the given blanks.

(Precipitation, Evaporation, Condensation, Water storage)

## Tamil Nadu Board Samacheer Kalvi solutions for Class 4th Science Term 2 Answers Guide chapter 2 - Water

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Concepts covered in Class 4th Science Term 2 Answers Guide chapter 2 Water are Water, Our Lifeline, States of Matter, The Solid State, The Liquid State, The Gaseous State, Change in State of Water, Water Cycle, Fresh Water Management.

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