New
New
Year 3

Protecting our eyes from the Sun: do and review

I can carry out and review an investigation about Sun protection.

New
New
Year 3

Protecting our eyes from the Sun: do and review

I can carry out and review an investigation about Sun protection.

Lesson details

Key learning points

  1. The Sun is always giving out light, but there are higher levels of ultraviolet light in the summer.
  2. The UV index tells us how strong the Sun's damaging ultraviolet rays are.
  3. Ultraviolet-sensitive beads change colour when exposed to UV light from the Sun.
  4. Careful observations should be made when comparing UV beads before and after they have been exposed to the Sun.
  5. Scientists often review a completed enquiry and write a conclusion.

Keywords

  • Sun - The Sun is a star and the centre of our solar system.

  • Ultraviolet (UV) - Ultraviolet is a type of light produced by the Sun that human eyes cannot see. It can harm a human's skin.

  • Exposed - To put or leave something in an unprotected place.

  • Review - When scientists review, they look again at what they have done and consider if it could be improved.

  • Conclusion - In a conclusion, scientists explain what the results show or mean.

Common misconception

It is safe to look at the Sun on a cloudy day or when wearing sunglasses. Only lighter skin tones require protection from UV light.

Reminders that pupils should never look at the Sun. All skin tones require protection from UV light.

This lesson is a follow-on from lesson 3 where children will have planned their investigation. Task A can be extended if required to test different sun creams. Apply different SPF sun creams to UV beads and test in the same way as the sunglasses.
Teacher tip

Equipment

Pairs of different sunglasses, UV beads, sun creams with different SPFs (optional).

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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6 Questions

Q1.
Why is the Sun important to humans?
An image in a quiz
It provides UV light which protects our skin.
It provides water for our rivers and seas.
Correct answer: It provides the heat and light that humans need to survive.
Q2.
Why is UV light from the Sun dangerous?
An image in a quiz
It is very bright.
It is very hot.
Correct answer: It can damage our skin.
Q3.
How can we protect our eyes from UV light from the Sun?
Correct answer: wearing sunglasses
wearing a long sleeved top
putting on sun cream
Q4.
Izzy is wearing sunglasses. She says, "I can look at the Sun because my sunglasses will protect my eyes." Is Izzy correct?
An image in a quiz
Izzy is correct. We can look at the Sun if we are wearing sunglasses.
Correct answer: Izzy is not correct. It is never safe to look at the Sun.
Izzy is not correct. We can only look at the Sun if the weather is cloudy.
Q5.
What does damage mean?
An image in a quiz
Correct answer: Something is harmed or spoiled.
Something is kept safe.
Something is planned or mapped out.
Q6.
Alex wants to find out which sunglasses provide the most protection from UV light. What should he do?
An image in a quiz
Test pairs of sunglasses to find out which are magnetic.
Correct answer: Test pairs of sunglasses to find out which let the least UV light through them.
Test pairs of sunglasses to find out which is made of the strongest material.
Q3 image 1 Andrienko Anastasiya/Shutterstock Q3 image 2 Sub Zero Technology Ltd/Wikimedia Commons Images

6 Questions

Q1.
What does the UV index tell us?
An image in a quiz
How much rain there is.
Correct answer: How strong UV rays from the Sun are.
How hot it is.
Q2.
What does exposed mean?
An image in a quiz
Correct answer: Putting or leaving something in an unprotected place.
Putting or leaving something in a dark place.
Putting or leaving something in a hot place.
Q3.
What happens to UV beads when they are exposed to UV light from the Sun?
An image in a quiz
Correct answer: They change colour.
They change shape.
They get smaller.
Q4.
Which skill do we use when comparing UV beads before and after they have been exposed to the Sun?
An image in a quiz
counting
researching
Correct answer: observing
Q5.
Which word means looking again at what you have done?
An image in a quiz
Correct answer: review
revenge
revolt
Q6.
Izzy and Alex review their enquiry and explain what their results mean. This is called ...
An image in a quiz
a connection.
a construction.
Correct answer: a conclusion.
Q1 Sudowoodo/Shutterstock

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