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Lesson 5 of 7 · Life Cycles

Experiment30 XP🌿 Wild Jungle

Plant Structures and Their Jobs

🧪Lab Brief #5

Life Cycles.

🎯 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

Plants have specialized structures: roots anchor the plant and absorb water, stems transport materials, leaves capture sunlight, and flowers produce seeds for reproduction.

Key Words

Tap a word to see its definition.

Materials Needed

  • water

Safety First

  • Never look directly at the Sun or into a laser, even briefly.
  • Mop up spills straight away so nobody slips, and keep liquids away from sockets.

Steps

Step 1Read

Look at the vocabulary words and write a definition for each in your own words.

Step 2Do

Design a controlled experiment: grow plants under different light conditions (full sun, partial shade, no light). Water equally and measure growth daily for one week.

Step 3Observe

Draw a detailed diagram of what you observe.

Step 4Record

Write a conclusion: what did your results show? Did they match your prediction?

Check Your Understanding

Question 1

1 of 3

What part of a plant absorbs water from the soil?

🌍

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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🌱Share card

Share this experiment

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

Ready?

Plant Structures and Their Jobs

Set it up. Test it. Be amazed.

Full screen — no distractions

🖨️

Checkout complete lesson on Life Cycles for 3rd Grade

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

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Plant Structures and Their Jobs — Life Cycles | 3rd Grade Science | LittleActivity