7

Lesson 7 of 84 ยท Ecosystems

Experimentโญ 30 XP๐ŸŒฟ Wild Jungle

Decomposers: Nature's Recyclers

๐ŸงชLab Brief #7

Ecosystems.

๐ŸŽฏ Your mission

Predict it first. Then prove yourself right (or wrong).

โšก The twist

Living things break the rules of non-living things โ€” find the rule they break.

๐Ÿคฏ

Mind = Blown

๐ŸŒณ Trees can talk to each other through underground fungus networks.

๐Ÿ”ฎ

Make a hypothesis first

Predict: what will happen to the plant if you change the water?

What You'll Learn

Decomposers like fungi and bacteria break down dead organisms and return nutrients to the soil. Without decomposers, dead material would pile up and nutrients would be locked away.

Key Words

  • consumer
  • decomposer
  • food web

Materials Needed

  • labels
  • seeds
  • soil
  • cups
  • water

Safety First

  • Clean up spills immediately to prevent slipping.
  • Use materials only as directed in the experiment.

Steps

Step 1 โ€” Read

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

Step 2 โ€” Do

Collect and classify 10 organisms from your yard into kingdoms, phyla, or groups. Use a dichotomous key if available.

Step 3 โ€” Observe

Note any unexpected results and think about why they happened.

Step 4 โ€” Record

Share your findings with the class or a partner and discuss what you learned.

Check Your Understanding

Question 1

1 of 3

Which stage comes after a caterpillar in metamorphosis?

๐ŸŒ

Where you see this in real life

This is why plants grow toward windows and why scabs form.

๐Ÿ†

Stretch Challenge

Try this in real life this week.

Watch a plant or pet for 5 minutes today and write down what you noticed.

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘ง

For the dinner table

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

๐ŸŽฏ

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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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Decomposers: Nature's Recyclers โ€” Ecosystems | 3rd Grade Science | LittleActivity | LittleActivity