53

Lesson 53 of 84 ยท Ecosystems

Experimentโญ 30 XP๐ŸŒฟ Wild Jungle

Predator and Prey Relationships (Part 2)

๐ŸงชLab Brief #53

Ecosystems.

๐ŸŽฏ Your mission

Run the experiment. Find out what really happens.

โšก The twist

What the body does in one minute is wilder than any cartoon.

๐Ÿคฏ

Mind = Blown

๐Ÿฆ  You have more bacterial cells in your body than human cells.

๐Ÿ”ฎ

Make a hypothesis first

Guess: how does the body solve this problem?

What You'll Learn

Predator-prey relationships help keep ecosystems balanced. When prey populations increase, predator populations grow too. When predators reduce prey numbers, predator populations then decline.

Key Words

  • adaptation
  • metamorphosis

Materials Needed

  • markers
  • tape
  • small pots
  • cotton balls

Safety First

  • Tie back long hair before starting the experiment.
  • Protect your work surface with newspaper or plastic.

Steps

Step 1 โ€” Read

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

Step 2 โ€” Do

Set up a composting experiment: place food scraps in one sealed bag and leaves in another. Observe decomposition over two weeks and record changes.

Step 3 โ€” Observe

Draw a detailed diagram of what you observe.

Step 4 โ€” Record

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

Check Your Understanding

Question 1

1 of 3

What is the difference between a predator and prey?

๐ŸŒ

Where you see this in real life

Your own body is doing this thousands of times every second.

๐Ÿ†

Stretch Challenge

Try this in real life this week.

Find one thing about your body that's different from a friend's. Wonder why.

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘ง

For the dinner table

โ€œTell me something you noticed about your own body today.โ€

๐ŸŽฏ

Next Smart Experiment

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

๐Ÿ”ฌShare card

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

๐Ÿ–จ๏ธ

Checkout complete lesson on Ecosystems for 3rd Grade

Get the full Ecosystems track as a printable PDF โ€” all lessons, worksheets, and answer keys.

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Predator and Prey Relationships (Part 2) โ€” Ecosystems | 3rd Grade Science | LittleActivity | LittleActivity