Lesson 4 of 84 · Ecosystems
Lesson⭐ 30 XP🌿 Wild JungleFood Chains and Food Webs
Ecosystems.
🎯 Your mission
Learn the rule. Then catch nature using it.
⚡ The twist
What the body does in one minute is wilder than any cartoon.
Mind = Blown
🦠 You have more bacterial cells in your body than human cells.
Make a hypothesis first
Guess: how does the body solve this problem?
What You'll Learn
Food webs show the complex feeding relationships in an ecosystem. Unlike a simple food chain, a food web shows that most organisms eat more than one type of food.
Key Words
- nucleus
- DNA
Steps
Review the background information on Ecosystems before starting.
Set up a composting experiment: place food scraps in one sealed bag and leaves in another. Observe decomposition over two weeks and record changes.
Look for patterns in your observations.
Make a graph or chart showing your results.
Check Your Understanding
Question 1
1 of 3What is the main source of energy for most food chains?
Where you see this in real life
Your own body is doing this thousands of times every second.
Stretch Challenge
Try this in real life this week.
Find one thing about your body that's different from a friend's. Wonder why.
For the dinner table
“Tell me something you noticed about your own body today.”
Next Smart Experiment
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Send it to a parent who's looking for a 10-minute kitchen science win.
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