77

Lesson 77 of 84 ยท Waves

Experimentโญ 30 XP

Claim, Evidence, and Reasoning (Part 4)

๐ŸงชLab Brief #77

Claim, Evidence, and Reasoning (Part 4).

๐ŸŽฏ Your mission

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

โšก The twist

Nature loves to surprise the careful watcher.

๐Ÿคฏ

Mind = Blown

๐Ÿ”ฌ The more you look, the more nature shows you.

๐Ÿ”ฎ

Make a hypothesis first

Before you start: write down what you think will happen, and why.

What You'll Learn

Scientific arguments require a claim, evidence, and reasoning. The claim states what you believe, evidence provides data supporting it, and reasoning explains how the evidence supports the claim.

Key Words

Tap a word to see its definition.

Materials Needed

  • pennies
  • plastic wrap
  • cardboard
  • tape

Safety First

  • Keep small objects away from young children.
  • Work in a well-ventilated area when using vinegar or other strong-smelling substances.

Steps

Step 1 โ€” Read

Read about Waves and write down three key facts.

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

Look for patterns in your observations.

Step 4 โ€” Record

Make a graph or chart showing your results.

Check Your Understanding

Question 1

1 of 3

What does a prism do to white light?

๐ŸŒ

Where you see this in real life

This shows up in your everyday life more than you'd think.

๐Ÿ†

Stretch Challenge

Try this in real life this week.

Try one experiment in real life this week โ€” even a tiny one.

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘ง

For the dinner table

โ€œWhat's the most surprising thing you learned today?โ€

๐ŸŽฏ

Next Smart Experiment

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

โšกShare 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 Waves for 7th Grade

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

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Claim, Evidence, and Reasoning (Part 4) โ€” Waves | 7th Grade Science | LittleActivity | LittleActivity