Grade 3- Science 3

Front 1

How much of Earth's surface is water?

Back 1

Three fourth 3/4th of the earth's is covered with water.

Front 2

How much of the earth's surface is land?

Back 2

One fourth 1/4th of the earth's surface is land.

Front 3

Where can you find salt water?

Back 3

Oceans and some Lakes have salt water.

Front 4

Where can you find almost all of Earth's water?

Back 4

The oceans hold almost all of the earth's water.

Front 5

Do people need salty or fresh water?

Back 5

People need fresh water.

Front 6

Is the water at the North Pole and South Pole fresh or salty?

Back 6

This water is fresh water.

Front 7

What is the body of the water closest to you?

Back 7

There is no body of water near me.

Front 8

What are the steps in water cycle?

Back 8

1. The sun heats liquid water.

2. the water evaporates

3. water vapor raises into the air

4. water vapor condenses or turn into drop of water and crystal of ice.

5. clouds are formed

6. when the water and ice get heavily.

7. they fall out of the air as rain, snow, hail and sleet.

Front 9

Why don't the rivers lakes and other places run out of water?

Back 9

The river, lakes and other places don't run out of water because the water cycle fill them again and again

Front 10

What is water cycle?

Back 10

Water cycle is how water moves from one place to another in the form of liquid water gas and ice.

Front 11

What does evaporation mean?

Back 11

When liquid turns into a gas or water vapour. we call this evaporation.

Front 12

What does condensation mean?

Back 12

Condensation is opposite of evaporation. It takes place when water vapor in the air turns into liquid.

Front 13

How are clouds formed?

Back 13

When the water condenses it turns into drop of water and crystal of ice. The water and ice form clouds

Front 14

How does water fall from the sky?

Back 14

What are faults from the sky as rain, sleet, hail and snow.

Front 15

Name the three states of water.

Back 15

Solid, liquid and gas are three states of water.

Front 16

What is water vapour?

Back 16

When water turns from liquid to gas is called water vapour.

Front 17

What happens when a liquid goes through evaporation?

Back 17

Water changes to gas.

Front 18

Where might the water of lakes go?

Back 18

It may evaporate.

Front 19

What happens to the puddles on the street after it rains?

Back 19

It evaporate

Front 20

Why does a puddle disappear?

Back 20

Because the sun heats the water evaporates.

Front 21

What is water cycle?

Back 21

Water cycle is how water moves between Earth and atmosphere and back.

Front 22

Where do all living things get the water they need?

Back 22

Plants and animals get water from water cycle.

Front 23

Explain water cycle.

Back 23

The sun heats the water in the ocean and on the land. The water changes from Liquid to water vapour, then water vapour cools when it rises into the air. The cooled water vapour changes again to liquid water drops. The liquid water drops from clouds when the clouds gets too heavy, then water falls to earth as precipitation.

Front 24

Why might rainfall instead of the snow?

Back 24

Because the temperature is higher when it rains.

Front 25

What might happen if there were no water cycle?

Back 25

You might run out of water.

Front 26

What is groundwater?

Back 26

Some precipitations goes into ground. The soil and rocks in the ground hold water. This water is called groundwater.

Front 27

What happens to water when it rains?

Back 27

Some water goes into a streams, lakes and rivers. Most of the water goes into the ground.

Front 28

Where is the groundwater?

Back 28

Groundwater fills the space in rocks and soils underground.

Front 29

How can we get groundwater?

Back 29

We dig deep holes to get groundwater.

Front 30

What are wells?

Back 30

We dig deep holds to get groundwater. These holes are called wells.

Front 31

What is bedrock?

Back 31

Water stays above the bedrocks underground. Bedrock has no space for water to fill.

Front 32

Why should we conserve water?

Back 32

Because you might run out of water.

Front 33

What does conserve mean?

Back 33

It means to use something carefully.

Front 34

Could we run out of fresh water?

Back 34

Yes, we could run out of fresh water if you are not careful.

Front 35

What are some ways to conserve water?

Back 35

Turn off water faucet when you are not using it.

Fix water faucets that leak.

What are the lawn and garden only when they need.

Wash only a full load of clothes in the washing machine.

Take a short shower instead of a long shower on bath