Lesson 45 of 84 · Ecosystems
Experiment⭐ 30 XP🌿 Wild JungleFood Chains and Food Webs (Part 2)
Ecosystems.
🎯 Your mission
Predict it first. Then prove yourself right (or wrong).
⚡ The twist
What the body does in one minute is wilder than any cartoon.
Mind = Blown
🐙 An octopus has 9 brains and 3 hearts.
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
- producer
- consumer
Materials Needed
- zip-lock bags
- labels
- seeds
- soil
- cups
- water
Safety First
- Do not look directly at the sun or bright lights.
- Clean up spills immediately to prevent slipping.
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.”
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