Where does light come from?

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Lesson 2 Turn on the Lights Year 1 / 2 Physical Science 1 Unit 1 Energy Comes in Different Forms Where does light come from? light dark sunbeams sources straight Vocabulary

Transcript of Where does light come from?

Page 1: Where does light come from?

Lesson 2 Turn on the Lights

Year 1 / 2 Physical Science 1

Unit 1 Energy Comes in Different Forms

Where does light come from?

light dark sunbeams

sources straight

Vocabulary

Page 2: Where does light come from?

Lesson 2 Turn on the Lights

Year 1 / 2 Physical Science 2

Unit 1 Energy Comes in Different Forms

Materials needed

INVESTIGATION QUESTION 4

What things can stop light?Class, group or pairs

You will need:

• torch

• book

• foil

• plastic

• cellophane or tissue paper

• a glass of water.

Page 3: Where does light come from?

Lesson 2 Turn on the Lights

Year 1 / 2 Physical Science 3

Unit 1 Energy Comes in Different Forms

Watch the video One Small Step.

Think, pair and share all the different things you saw that gave off light.

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Most of the light on Earth comes from the sun. Light from the sun helps us to see in the day time. At night time, we need other light sources to help us see.

Page 4: Where does light come from?

Lesson 2 Turn on the Lights

Year 1 / 2 Physical Science 4

Unit 1 Energy Comes in Different Forms

Read the eBook Where Does

Light Come From?

With your class, do the parts, systems, people activity.

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There are many different sources of light and they are all around us. Very rarely are we ever completely in the dark.

Parts

Name something that gives off light.

Systems

When would you use it?

Where would you use it?

How does it work?

People

Why is it important to people?

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Unit 1 Energy Comes in Different Forms Lesson 2 Turn on the Lights

Year 1 / 2 Physical Science © Inquisitive Pty Ltd 6

InvestigationLight travels in a straight line until something stops it.You are going to test what things can stop light.Use a torch to shine at these things.

Predict what I think will happen. Will it stop the light?

Observe what I saw. Did it stop the light?

yes / no yes / no

yes / no yes / no

yes / no yes / no

yes / no yes / no

yes / no yes / no

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Page 7: Where does light come from?

Unit 1 Energy Comes in Different Forms Lesson 2 Turn on the Lights

Year 1 / 2 Physical Science © Inquisitive Pty Ltd 7

Explain what you saw.

5Book

Cellophane or tissue

Foil

Glass of water

Plastic

Page 8: Where does light come from?

Unit 1 Energy Comes in Different Forms Lesson 2 Turn on the Lights

Year 1 / 2 Physical Science © Inquisitive Pty Ltd 8

When lightning strikes, it lights up the sky.

Choose a light source and explain how it works.6

Lightning is made by nature.

It is a bright flash during a thunderstorm.

Lightning Example

Page 9: Where does light come from?

Unit 1 Energy Comes in Different Forms Lesson 2 Turn on the Lights

Year 1 / 2 Physical Science © Inquisitive Pty Ltd 9

Sunlight helps us to see things. Write two other things that sunlight is used for.

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I think Why I think that

Sunlight is used …

I think Why I think that

Sunlight is used …

Page 10: Where does light come from?

Unit 1 Energy Comes in Different Forms Lesson 2 Turn on the Lights

Year 1 / 2 Physical Science © Inquisitive Pty Ltd 10

The moon is not a light source.

Answer the questions to help you explain why.

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Connect

What do you already know about the moon?

Extend

Light is a type of energy. Does the moon have energy?

Challenge

How then does the moon shine?