My, my what a long winter this has been! Shira and Kygo love playing in the snow, but now they can't wait for the warm embrace of spring. But, how to they know warmer weather is on its way? What if this winter lasted forever?
Thankfully, this winter won't be indefinite. We know that after the chill winter brings, spring provides warmth and new life. Then comes summer, followed by fall, and finally it's winter again and the cycle repeats. You see four different seasons, but have you ever wondered why they change?
The answer can be found in the Earth's yearly trip around the sun. [Explain about Earth's tilt]
[Explain about Earth's orbit]
[Explain about hemispheres]
Now you know why the seasons change, but the fun doesn't stop there. Grab a parent or friend and go outside and discover what season it is. What things do you associate with each season?