How did our universe really begin? Explore the Science Big Bang Theory and Cosmic Microwave Background (CMB) with this multiple activity-based instructional activity that demonstrates that the increase of density due to the decrease of...

Do you think you know better? Become a scientist and prove it. Scholars review the evidence for two different theories of the origins of the universe. They notice the empirical observations as well as the inferences to determine which is...

Your pupils may believe that you and their parents are the oldest things in the universe, but surprise! There are elements of the universe that are even older. Elementary scientists create a class timeline to demonstrate the...

A read-aloud anthology explores our solar system and beyond. Informational texts about astronomy invite pupils to discuss readings. Extension activities examine vocabulary, sayings, and phrases. Scholars work through the writing process...

A website all about planetary mysteries—it's a one-stop-shop for all things, stars, planets, and space travel. Scholars read an astronomy overview to discover the page's big ideas, then choose from the plethora of resources, including...

You're only 10 minutes late? Do you know how much the universe has expanded in those 10 minutes? Scholars graph supernovae based on their redshift and see if the results verify Hubble's Law. If it does confirm it, the universe is...

When Einstein first heard the theory of the expanding universe, he dismissed it as bad physics. Now scholars learn about the theory and how scientists prove it has merit. Through a hands-on simulation and videos, class members measure...