Lesson 24 of 84 ยท Ecosystems
Experimentโญ 30 XP๐ฟ Wild JungleWhat Do Plants Need to Grow?
Ecosystems.
๐ฏ Your mission
Predict it first. Then prove yourself right (or wrong).
โก The twist
Living things break the rules of non-living things โ find the rule they break.
Mind = Blown
๐ณ Trees can talk to each other through underground fungus networks.
Make a hypothesis first
Predict: what will happen to the plant if you change the water?
What You'll Learn
Plants need sunlight, water, carbon dioxide, and nutrients from soil to grow. Their roots absorb water and minerals while their leaves capture sunlight for photosynthesis.
Key Words
- natural selection
- evolution
Materials Needed
- labels
- seeds
- soil
- cups
Safety First
- Handle glass items carefully to avoid breakage.
Steps
Review the background information on Ecosystems before starting.
Model natural selection: scatter colored paper scraps on grass. Time how long it takes a partner to pick up each color. Which color survived longest? Why?
Use your senses (except taste) to describe what you notice.
Write a summary of your findings in 3-5 sentences.
Check Your Understanding
Question 1
1 of 3What type of consumer eats only plants?
Where you see this in real life
This is why plants grow toward windows and why scabs form.
Stretch Challenge
Try this in real life this week.
Watch a plant or pet for 5 minutes today and write down what you noticed.
For the dinner table
โTell me something you noticed about your own body today.โ
Next Smart Experiment
We'll pick an experiment that matches exactly how you're thinking right now.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
Checkout complete lesson on Ecosystems for 7th Grade
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