It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
Winter (December 20 or 21)
This guide has resources about winter weather, science and animal adaptations.
Create a scene with 100 snowballs! To drop them, hit Go. To re-stack them, hit the circle with 6 snowballs in the top left corner. Try throwing them around. Great for the interactive whiteboard.
This two-minute video explains the chemistry of how snowflakes form, "from their origins in bits of dust in clouds that become droplets of water falling to Earth".
This 9-minute video explains the cyclical phenomena at work in the universe. Learn about the subtle changes in the sky as the Earth circles the sun, following along the ecliptic. Learn how the tilt of the Earth's axis has a profound effect on the planet by creating the seasons.
Read this online book about enjoying a cold, snowy winter. There are many fun things to do when it's cold outside. Click on the speaker icon below the book for an audio option for early readers.
Why do some animals hibernate? The Arctic Ground Squirrel burrows under the permafrost and slips into a state of suspended animation. The fat-tailed dwarf lemur stores its fat reserves in its tail - doubling its body weight.
Did you know that snowflakes are all six-sided and that none of them are exactly the same? Learn about the science of covalent bonds and the making of a snowflake.