Why do colors exist in the world? That’s what Phoebe wants to know. The answer might change how you think about the colors that you see!

EDUCATION RESOURCES: NGSS Standards: ESS K-ESS3-3 Crosscutting Concepts: Cause and Effect Trash is one of the biggest problems on the...

EDUCATION RESOURCES: NGSS Standards: LS 3-LS3-2 Crosscutting Concept: Cause and Effect Why and how do cats purr? That’s what Reid wants...

EDUCATION RESOURCES: NGSS Standards: PS, ESS 2-PS1-2 Crosscutting Concepts: Cause and Effect How do you launch the largest space...

EDUCATIONAL RESOURCES: NGSS Standards: LS 3-LS3-1 3-LS3-2 Crosscutting Concepts: Patterns Cause and Effect Fish with legs? Crazy, right?...

EDUCATIONAL RESOURCES: NGSS Standards: LS 3-LS3-2 Crosscutting Concept: Cause and Effect What are the origins of owls, and why do they...

EDUCATIONAL RESOURCES: NGSS Standards: LS 5-LS2-1, 3-LS3-2, 4-LS1-1 Crosscutting Concepts: Cause and Effect, Systems and System Models...

An interactive episode about why trees go dormant! Discover our gallery of tree images.

EDUCATION RESOURCES: NGSS Standards: LS, ESS K-LS1-1, K-ESS3-1, 2-LS4-1, 3-LS4-3 Crosscutting Concepts: Patterns, Systems and System...

EDUCATION RESOURCES: NGSS Standards: ESS 2-ESS1-1, 4-ESS3-2 Crosscutting Concepts: Stability and Change, Cause and Effect Would you fly...