Protecting our eyes from the Sun: do and review | Science

Starter quiz

Why is the Sun important to humans?
- It provides UV light which protects our skin.
- It provides water for our rivers and seas.
- It provides the heat and light that humans need to survive. ✓
Why is UV light from the Sun dangerous?
- It is very bright.
- It is very hot.
- It can damage our skin. ✓
How can we protect our eyes from UV light from the Sun?
- wearing sunglasses ✓
- wearing a long sleeved top
- putting on sun cream
Izzy is wearing sunglasses. She says, "I can look at the Sun because my sunglasses will protect my eyes." Is Izzy correct?
- Izzy is correct. We can look at the Sun if we are wearing sunglasses.
- 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.
What does damage mean?
- Something is harmed or spoiled. ✓
- Something is kept safe.
- Something is planned or mapped out.
Alex wants to find out which sunglasses provide the most protection from UV light. What should he do?
- Test pairs of sunglasses to find out which are magnetic.
- 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.

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

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

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.

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.