Sunlight
Science: Year 3 & 4 National Curriculum, topic 4.1.3
Sunlight
Light from the sun is called sunlight.
Never look at the sun
- You should never look at the sun.
- Light straight from the sun can burn where it hits the back of the eye.
The sun at sunset and sunrise
- When the sun is very low at sunset, it often looks much less bright.
- It is still not safe to stare at a setting sun directly.
Dangers of reflected light
- Sometimes even reflected light from the sun is too bright.
- Explorers in the Arctic sometimes used to get ‘snow-blindness’ from too much light reflecting off the white snow.
Protecting our eyes
- We can protect our eyes by wearing sunglasses when there is a lot of sunshine.
- It is NOT safe to look at the sun, even through dark glasses.
Test yourself on Sunlight
Why should you never look directly at the sun?
Which of the following is true about wearing sunglasses?