69

Lesson 69 of 84 ยท Human Impacts on Earth

Experimentโญ 30 XP๐ŸŒฟ Wild Jungle

Forming a Hypothesis (Part 4)

๐ŸงชLab Brief #69

Human Impacts on Earth.

๐ŸŽฏ Your mission

Run the experiment. Find out what really happens.

โšก The twist

Every species solves the same problem differently.

๐Ÿคฏ

Mind = Blown

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

๐Ÿ”ฎ

Make a hypothesis first

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

What You'll Learn

A hypothesis is a testable prediction about what will happen in an experiment. A good hypothesis is specific and based on prior knowledge or observations.

Key Words

  • variable
  • control
  • data

Materials Needed

  • straws
  • paper clips
  • rubber bands
  • string
  • cups
  • aluminum foil

Safety First

  • Do not taste any materials.
  • Wear safety goggles when mixing liquids.
  • Wash hands after handling materials.

Steps

Step 1 โ€” Read

Read the introduction and identify the main idea of this lesson.

Step 2 โ€” Do

Design a device that can protect an egg from a 2-meter drop. You may use paper, tape, straws, and cotton. Test it and improve your design.

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 the dependent variable?

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’งShare card

Share this experiment

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

๐Ÿ–จ๏ธ

Checkout complete lesson on Human Impacts on Earth for 7th Grade

Get the full Human Impacts on Earth track as a printable PDF โ€” all lessons, worksheets, and answer keys.

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