Poll - Daddy Why - EF UI 10A

Why is the sky blue?

• Because the light from the sun reflects off the blue water of the ocean.

• Because the Earth's atmosphere scatters more blue light than red light from the sun.

Why is the sea salty?

• Because salt dissolves into the water from seaweed and other plants.

• Because salt dissolves into the water from the land around it.

Why can we sometimes see the moon during the day?

• Because as it rotates round the Sun, it reflects the Suns rays during daytime as well as night time.

• Because sometimes during the day, the Sun doesn't shine as brightly.

Why do we have a leap year?

• Because every four years, the Earth goes round the Sun slightly faster.

• Because the Earth takes slightly more than four years to go round the Sun .

Why do we blink?

• To keep our eyes moist and clean.

• To help us stay awake.

Why does cutting onions make us cry?

• Because they produce gas which irritates our eyes.

• Because they give off dry particles, which irritate our eyes.

What is a cloud?

• A mixture of warm gases rising from the Earth.

• A mixture of water vapour, ice and dust floating in the sky.

What is a black hole?

• A place in space where gravity pulls so hard that even light cannot get out.

• A 'vacuum cleaner' in space that swallows up everything around it.