17

Lesson 17 of 84 ยท Ecosystems

Simulationโญ 30 XP๐ŸŒฟ Wild Jungle

Symbiosis: Living Together

๐ŸงชLab Brief #17

Ecosystems.

๐ŸŽฏ Your mission

Push the limits. See what changes.

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

Symbiosis is a close relationship between two different species. In mutualism, both benefit; in parasitism, one benefits while the other is harmed; in commensalism, one benefits and the other is unaffected.

Key Words

  • trait
  • dominant
  • recessive

Steps

Step 1 โ€” Read

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

Step 2 โ€” Do

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 3 โ€” Observe

Use your senses (except taste) to describe what you notice.

Step 4 โ€” Record

Write a summary of your findings in 3-5 sentences.

Check Your Understanding

Question 1

1 of 3

What is symbiosis?

๐ŸŒ

Where you see this in real life

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

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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

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

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

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Checkout complete lesson on Ecosystems for 7th Grade

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

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