IPC Topic – Four Seasons
Class:______________ Date:__________________
Year 1 Homework: To be used as Talk Homework
Four seasons
Do you sometimes wish it could be summer all year round?
As nice as summer is, we really need the other seasons as well.
Why do we have seasons?
We all know that the world turning makes day and night. In 24 hours the world turns round once. When we are
facing the Sun it is day. When we face away it is night. Simple!
We travel around the Sun in a circle, so why does it get colder in the winter?
It's because the spin of the Earth is actually wonky. The axis of the Earth is tilted, which means that in summer we
(in the UK) are leaning towards the Sun. As we travel around the Sun, we begin to tilt away and it becomes
winter.
Have a look at this clip to see how the Earth's tilt changes the seasons.
https://www.youtube.com/watch?v=3eFqZWX8nTo
This is why when we have winter, Australia has summer. Imagine having Christmas dinner on the beach! But not
all countries have seasons. Countries near to the equator - the line which goes round the middle of the earth - have
very mild seasons. The weather stays almost the same temperature all the year round. Can you think why this is?
The middle doesn't tilt very much does it? This means the seasons don't change as much.
Can you guess what the seasons are like in the North and South Pole? Because they tip further towards and
further away from the sun, their seasons are very extreme. The North and South Pole only have one sunrise and
one sunset a year. It is dark for six months of the year and light for six months of the year.
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