Intro to Light Waves

4

The sun causes changes to things on Earth. 

Think of an object you have observed before and after it was left out in the sun. 

Describe how it changed.

Answer in a Complete Sentence

Before _______ (name of object) was left out in the sun, it looked like_______  (description) 
After_______ (name of object) was left out in the sun, it looked like_______ (description) 

How does light interact with materials?

Spectroscopists
scientists who study light and how it interacts with materials.

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Why do we have to wear sunscreen?

Light from the sun can cause damage to genetic material—DNA—inside skin cells. Over time, that damage may lead to skin cancer.

The rate of skin cancer varies around the world.

Let’s look at a larger version of this map to learn more about what these colors might mean

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What does each different color mean?

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Draw a line where you think the place on Earth that gets the most Sunlight

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Draw a circle around the areas with with NO data about skin cancer

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Draw a circle around the areas with the highest rate of skin cancers

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The countries that get the most sunlight hours are on the _______ 

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Two out of 3 Australians will be diagnosed with skin cancer by the time they are 70 years old.

That makes Australia's skin cancer rate the highest on the planet!

We are going to research why!

How does light from the sun cause skin cancer?

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Energy is the ability to _______ 

Demo 1 - Part 1
Analyzing Thermometers

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What is the starting temperature? _______ 

Hands on Activity between Demo

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Shine the flashlight on the liquid crystal sheet.
Did you observe evidence that light carries energy?
Describe that evidence

Demo  - Part 2
Analyzing Thermometers

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What is the ending temperature? _______ 

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Did you observe evidence that light carries energy?
Describe that evidence

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	Agree	Disagree
Light causes the same change to all materials.
All light is the same, whether it comes from the sun, a light bulb, or anywhere else.
All light can be seen.
Light can travel through materials that you cannot see through, like wood or aluminum foil.

1

Intro to Light Waves

How does light interact with materials?

Why do we have to wear sunscreen?

What does each different color mean?

Draw a line where you think the place on Earth that gets the most Sunlight

Draw a circle around the areas with with NO data about skin cancer

Draw a circle around the areas with the highest rate of skin cancers

Two out of 3 Australians will be diagnosed with skin cancer by the time they are 70 years old.

That makes Australia's skin cancer rate the highest on the planet!

We are going to research why!

How does light from the sun cause skin cancer?

Demo 1 - Part 1

Analyzing Thermometers

Hands on Activity between Demo

Shine the flashlight on the liquid crystal sheet. Did you observe evidence that light carries energy?Describe that evidence

Demo - Part 2

Analyzing Thermometers

Did you observe evidence that light carries energy?Describe that evidence

Which statement you are most sure about? It can be a statement that you agree or disagree with.

How does light interact with materials?

Why do we have to wear sunscreen?

What does each different color mean?

What color has the lowest number of people with skin cancer?

What color has the highest number of people with skin cancer?

Draw a line where you think the place on Earth that gets the most Sunlight

Draw a circle around the areas with with NO data about skin cancer

Draw a circle around the areas with the highest rate of skin cancers

What do you know about the people that live on the equator and their skin color?

What do you know about the people that live in Australia and their skin color?

Someone with a darker color skin cannot get skin cancer

Two out of 3 Australians will be diagnosed with skin cancer by the time they are 70 years old.

That makes Australia's skin cancer rate the highest on the planet!

We are going to research why!

How does light from the sun cause skin cancer?

Demo 1 - Part 1

Analyzing Thermometers

Hands on Activity between Demo

Shine the flashlight on the liquid crystal sheet. Did you observe evidence that light carries energy?Describe that evidence

Demo - Part 2

Analyzing Thermometers

Did you observe evidence that light carries energy?Describe that evidence

Which statement you are most sure about? It can be a statement that you agree or disagree with.

What color has the lowest number of people with skin cancer?

What color has the highest number of people with skin cancer?

What do you know about the people that live on the equator and their skin color?

What do you know about the people that live in Australia and their skin color?

Someone with a darker color skin cannot get skin cancer

Shine the flashlight on the liquid crystal sheet.
Did you observe evidence that light carries energy?
Describe that evidence

Did you observe evidence that light carries energy?
Describe that evidence

Shine the flashlight on the liquid crystal sheet.
Did you observe evidence that light carries energy?
Describe that evidence

Did you observe evidence that light carries energy?
Describe that evidence