Seasons

This slideshow requires JavaScript.

Summary:
We moved on to a new topic today: seasons. We went through a PowerPoint presentation (posted below) that started off with a diagram of the sun, Earth, moon system — not to scale! Then we added in the Earth’s orbit, its rotation, and also its tilt, which was a new addition to yesterday’s model. Then we discussed how the increasing the angle of incoming sunlight can make it much less powerful. Putting all of this together, the reason for the seasons became obvious. It’s not because of the gods or because of our changing distance from the sun, it’s because of Earth’s tilt.

Resources:
February 13 – Seasons Notes (pg506).pptx

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s