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Lesson 81 of 84 · Simple Ecosystems

Experiment30 XP🌿 Wild Jungle

What Is a Mammal? (Part 3)

🧪Lab Brief #81

Simple Ecosystems.

🎯 Your mission

Set it up. Test it. Be amazed.

⚡ The twist

Every species solves the same problem differently.

🤯

Mind = Blown

🐙 An octopus has 9 brains and 3 hearts.

🔮

Make a hypothesis first

Before you watch: what do you think it'll do?

What You'll Learn

Mammals have fur and feed milk to their babies. Dogs, cats, and humans are mammals!

Key Words

Tap a word to see its definition.

Materials Needed

  • small pots
  • cotton balls
  • zip-lock bags
  • labels
  • seeds
  • soil

Safety First

  • Be careful with scissors — ask an adult for help if needed.

Steps

Step 1Read

Read about Simple Ecosystems with a partner or grown-up.

Step 2Do

Draw a food chain: start with the sun, then a plant, then an animal that eats it, then a predator.

Step 3Observe

Watch carefully. What happens?

Step 4Record

Draw and write about what you learned.

Check Your Understanding

Question 1

1 of 3

What is a food chain?

🌍

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

We'll pick an experiment that matches exactly how you're thinking right now.

🪨Share card

Share this experiment

Send it to a parent who's looking for a 10-minute kitchen science win.

🖨️

Checkout complete lesson on Simple Ecosystems for 2nd Grade

Get the full Simple Ecosystems track as a printable PDF — all lessons, worksheets, and answer keys.

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What Is a Mammal? (Part 3) — Simple Ecosystems | 2nd Grade Science | LittleActivity