Sources of Water /Uses of water

Prepared by:Shirley Puaso –Valera

Grade 3 – St. Francis / St.Augustine / St. Maria Goretti

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.

B. Identify the sources of water.

C. Describe the uses of water.

Review of the past lesson

Factors that harm the soil

Describing the picture

Questions: 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

Water Cycle

Group singingThis 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 seaa girl drinking water

a pond with animals in ita 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

Homes to fishes, other sea animals, and plants.

( used for food, medicine , and

decoration -basic needs of humans-clean water is used for drinking, cooking, cleaning, and taking a bath

-some water forms are used for

recreational purposes-one can go skiing,

swimming, or boating in these places

-water is also used in farms for irrigation

and in industries for manufacturing

products.

-ships and water vessels, travel in big bodies of water to

transport people and goods from one place

to another

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?