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Plants need sunlight and water to grow, but what if the sunlight is out of the plant’s reach? Will the plant just give up?

In this lesson, first we’ll go outside and observe different plants. By looking closely, we can make guesses about how they get the sunlight they need. Then, we’ll do an experiment to see if plants can actually move to get to the light. This will help us learn about phototropism – a phenomenon that has helped plants survive for millions of years.

What you’ll learn:

  • There is a phenomenon that gives plants a better chance of surviving when sunlight is out of the plant’s reach.

Lesson Content

Prep
Planning & Materials
Lesson 1
Discussion
Activity | Plants Looking for Light Scavenger Hunt
Video | Reaching for the Sun: How Plants Find Light
Lesson 2
Video | Phototropism Part 1
Experiment | How Do Plants Get to the Light? Part 1
Video | Phototropism Part 2
Experiment | How Do Plants Get to the Light? Part 2
Video | Phototropism Part 3
Answers
Answer Key | Can Plants Move?