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Basic 1 · Science · Earth Science

Where Does Rain Water Go?

In this topic you will see that pools of water and mist disappear after rain.

By the end of these notes you should be able to:

  • Notice that puddles dry up after rain
  • Explain that the sun dries up water
  • Say that mist also disappears when the sun comes out

What you already know

  • The sun gives us light

Copy everything that has a blue line on its left into your notebook. The other parts are for reading.

Strand
Cycles
Sub-strand
Earth Science
Indicator
B1.2.1.3.1 – Observe the disappearance of mist and pools of water after rains

Introduction

After the rain, there are pools of water on the ground. Later in the day, the sun comes out. The pools become smaller and then disappear.

1. Puddles Dry Up

Puddle: A small pool of water on the ground after rain.

The heat of the sun dries up the water.

The water goes up into the air. We cannot see it.

A puddle in the morning and a smaller puddle in the afternoon under the sun
Figure 1: A puddle drying in the sun Draw a big puddle and a small puddle.Illustration: Sirbus

2. Mist Disappears

Mist is like a thin cloud near the ground. We see it on cold mornings.

When the sun comes out, the mist disappears.

3. A Simple Test

Steps

  1. Put water in two shallow bowls.
  2. Mark the water level with chalk.
  3. Put one bowl in the sun and one in the shade.
  4. Check the water level after some hours.

The bowl in the sun loses water faster.

New words

puddle
A small pool of water on the ground.
mist
A thin cloud near the ground.
disappear
To go out of sight.
shade
A place the sun does not shine on.

Summary

  • Puddles dry up after the rain.
  • The sun's heat makes water go into the air.
  • Mist disappears when the sun comes out.

Class activity: Sun and Shade Bowls

  1. Put the same amount of water in two bowls.
  2. Mark the level with chalk.
  3. Put one bowl in the sun and one in the shade.
  4. Compare the water levels at the end of the day.

You need: Two shallow bowls of water, Sticks of chalk, Printed photograph of a local rain puddle

Exercises

Answer in your exercise book first, then check your answers.

  1. 1. What dries up puddles?

    • A. The sun
    • B. The moon
    • C. A torch
    • D. A bucket
    Show answer
    Answer: The sunThe sun's heat dries water.

  2. 2. Which bowl loses water faster?

    • A. The one in the sun
    • B. The one in the shade
    • C. Both the same
    • D. Neither
    Show answer
    Answer: The one in the sunThe sun's heat makes water go into the air.

  3. 3. Mist disappears when the sun comes out.

    • A. True
    • B. False
    Show answer
    Answer: TrueThe sun's heat clears mist.

  4. 4. Puddles stay forever after rain.

    • A. True
    • B. False
    Show answer
    Answer: FalseThey dry up.

  5. 5. A small pool of water on the ground is a ______.

    Show answer
    Answer: puddlePuddles form after rain.

  6. 6. Where does puddle water go when it dries up?

    Show answer
    Answer: It goes up into the air.We cannot see it in the air.

Homework

  1. After the next rain, look at a puddle in the morning and the evening. Draw both.