78

Lesson 78 of 84 ยท Ecosystems

Experimentโญ 30 XP๐ŸŒฟ Wild Jungle

The World of Microorganisms (Part 2)

๐ŸงชLab Brief #78

Ecosystems.

๐ŸŽฏ Your mission

Set it up. Test it. Be amazed.

โšก The twist

Every species solves the same problem differently.

๐Ÿคฏ

Mind = Blown

๐Ÿ™ An octopus has 9 brains and 3 hearts.

๐Ÿ”ฎ

Make a hypothesis first

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

What You'll Learn

All living things share basic characteristics: they grow, reproduce, respond to their environment, and need energy to survive. Plants make their own food through photosynthesis, while animals must eat other organisms.

Key Words

  • environment
  • nutrients
  • prey

Materials Needed

  • water
  • plastic wrap
  • ruler

Safety First

  • Be careful with scissors โ€” ask an adult for help if needed.
  • Do not look directly at the sun or bright lights.

Steps

Step 1 โ€” Read

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

Step 2 โ€” Do

Build a model ecosystem in a jar using soil, small plants, and water. Seal it and observe how the water cycle works inside it for one week.

Step 3 โ€” Observe

Watch carefully for any changes and note the time.

Step 4 โ€” Record

Create a data table to organize your measurements.

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

Next Smart Experiment

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๐Ÿ”ฌShare card

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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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The World of Microorganisms (Part 2) โ€” Ecosystems | 3rd Grade Science | LittleActivity | LittleActivity