An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock
()
or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Here is a list of recently posted videos and webinars, sorted by date. Use the menu to the left to filter by topic, tag, audience, age group, program type, program option, and series.
Explore how preschoolers use the scientific method to figure out how the world works. Learn about strategies and teaching practices that help all children explore science concepts.