Sources of Water /Uses of water

Prepared by:

Shirley Puaso –ValeraGrade 3 – St. Francis / St.Augustine

SY 2014-2015

Key Questions:A.Why is water

important?

B. How can you keep our water clean and safe to use?

Objectives

A.Explain the importance of water.

Objectives

B. Identify the sources of water.

Objectives

C. Describe the uses of water.

Review of the past lesson

Factors that harm the soil

Describing the picture

Describing the pictureQuestions:

A. What is it?

B. Have you seen a body of water like this?

C. How does water help us?

Wheel Diagram Write a word/s on each spoke that is related to the word

inside the wheel. 

water

Sources  of Water1.Salt  water from seas and oceans

- most of the water that covers the earth’s surface is ocean water. There are many minerals in the oceans, but salt is the most common . Salt comes from minerals that are carried down into the seas and oceans. This is the reason why ocean water is salty. ( when salt water in a basin is placed , water evaporates into the air, the salt remains in the basin

Sources  of Water1. Salt  water from seas and oceans

- Scientist say that the ocean produces 805 of the oxygen we breathe. This is possible because of planktons, the tiny –releasing organisms that live in the oceans  and seas.

- Seawater is the habitat of aquatic plants and animals

Sources  of Water2. Fresh water from rivers , lakes , and ponds

 - it does not contain salt

- It is rainwater that flows from     land into streams and rivers.- It is usually used for cleaning,       washing, bathing,      and other       household chores

Sources  of Water2. Fresh water from rivers , lakes , and ponds

 - it is easily become polluted because they  are open. 

- People can throw domestic and industrial wastes into it

Groundwater- Is kept in a closed container called the water table.

- This condition prevents it from becoming dirty

- It is safe from domestic wastes

- It is safe from poisonous chemicals

Groundwater

- It is safe source of water. Considered the cleanest water and contains plenty of dissolved minerals that the human body needs.

Groundwater- It is a safe and direct source of water for cooking and drinking.

- Most of the subdivisions and residential areas that do not have public water facilities get their water from groundwater. They usually have deep well that provide them water for their needs

Groundwater- Is kept in a closed container

called the water table.- This condition prevents it

from becoming dirty- It is safe from domestic

wastes- It is safe from poisonous

chemicals

Water in the air

- Water moves from the air to the land, and from the land to the air. This movement of water between the air and land is called water cycle .

Water in the air

- Water cycle is a very important cycle.

- It goes on all the time. Without it , life on Earth would be impossible

Group singing

This is the way we take a bath( 3x)

This is the way we take a bath so early in the morning

Change take a bath to: water plants, wash our clothes , clean our house

Think –Pair-Share

Identify some other uses of water

Activity 8.3: Importance of water

Problem: How does water help us?

What you need:

pictures of the following:

a ship traveling in the sea

a girl drinking water

a pond with animals in it

a family on the beach

Activity 8.3: Importance of water

What to do:

1.Get a partner to work with on this activity.

2.Look at the pictures.

3.Study the importance of water in each picture?

What have you found out?

Activity 8.3: Importance of waterWhat have you found out?

1. What can a ship do? What is the ship dong in the water? __________________________

2. What is the girl doing? __________________

3. What are the animals doing in the pond?

_________________________________

4. What is the family doing on the beach?

____________________________________

Activity 8.3: Importance of waterConclusion:

What are the uses of water to people and other living things?

________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Presentation

Different uses of water using the converging radial.

Uses of water

Generalization

• Water covers about three-fourths of the earth’s surface.

• Water comes from different sources. The different kinds of water are: salt water from seas and oceans; fresh water from rivers, lakes , and ponds; ground water beneath the earth’s surface; and water in air.

Valuing

• Water conservation

EvaluationA. Write YES if the statement is correct and NO

if it is not. (p.302-A)

B. Answer the following.

1. What are the uses of water to living things?

2. Why is water cycle important?