The Earth is split into two halves by the equator, with the top half called the Northern Hemisphere and the bottom half called the Southern Hemisphere. We have seasons because the Earth orbits the Sun over 365 days as it rotates on a tilted axis, causing one hemisphere to be tilted toward or away from the Sun at different times, making those locations warmer or colder respectively.

1. It’s a world of two halves….
The Earth is a sphere and is split into two halves by an imaginary
line called the ___________________.
The top half is called the _______________ ________________
and the bottom half is called the _____________________
___________________.
Draw the North Pole and the South Pole on this picture of the
Earth. Then add some countries (remember the Earth is titled!).
Finally, label the Northern and Southern hemispheres.
Why do we have seasons?
We have seasons because the _________________ orbits the
______________. It takes the Earth __________________ days (or
one year) to orbit the Sun. Because the Earth is ________________
on its axis, at all times of the year one _______________________
is always tilted either ________________________ or
_________________ from the Sun. In the hemisphere that is tilted
towards the Sun, it is _________________ because the Sun’s rays
hit that hemisphere more strongly. In the hemisphere that is tilted
away from the Sun it is ___________________ because the Sun’s
rays take longer to reach it and so they lose some of their strength.
That’s why it’s __________________ in Winter!
Northern Hemisphere equator
Southern hemisphere
away Earth colder tilted
hemisphere 356¼ Winter Sun
towards Summer