Why Do Leaves Change Color?
The Big Idea
Witness the spectacular transformation of autumn forests. Discover how trees shut down their green chlorophyll factories to reveal the hidden yellows, oranges, and reds that were there all along.
Key Vocabulary & Concepts

Hands-On Observation Checklist
Teacher & Parent Discussion Starters
- Why is understanding why do leaves change color? important in everyday real life?
- What variable or factor had the biggest impact when testing the simulation?
- How does this concept connect to another science topic you have learned about?
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