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Lesson 15 of 84 · Life Cycles

Experiment30 XP🌿 Wild Jungle

Plants and Animals Help Each Other

🧪Lab Brief #15

Life Cycles.

🎯 Your mission

Run the experiment. Find out what really happens.

⚡ 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

Plants produce oxygen that animals need to breathe. Animals produce carbon dioxide that plants need to grow!

Key Words

Tap a word to see its definition.

Materials Needed

  • paper towels
  • markers
  • tape
  • small pots
  • cotton balls

Safety First

  • Clean up spills immediately to prevent slipping.
  • Use materials only as directed in the experiment.
  • Keep small objects away from young children.

Steps

Step 1Read

Talk about what you already know about Life Cycles.

Step 2Do

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

Step 3Observe

Compare what happened to what you predicted.

Step 4Record

Tell the class one thing you learned today.

Check Your Understanding

Question 1

1 of 3

What do bees get from flowers?

🌍

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 Life Cycles for 2nd Grade

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

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Plants and Animals Help Each Other — Life Cycles | 2nd Grade Science | LittleActivity