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Lesson 1 of 4 · Scientific Argument

Lesson30 XP

Claim, Evidence, and Reasoning

🧪Lab Brief #1

Scientific Argument.

🎯 Your mission

Understand the idea. Then look for it everywhere.

⚡ The twist

Nature loves to surprise the careful watcher.

🤯

Mind = Blown

🔬 The more you look, the more nature shows you.

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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.

Steps

Step 1Read

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

Step 2Observe

Compare the before and after states.

Step 3Record

Write your conclusion: did the results match your hypothesis? What would you change next time?

Check Your Understanding

Question 1

1 of 3

What is a scientific model?

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Where you see this in real life

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

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Stretch Challenge

Try this in real life this week.

Try one experiment in real life this week — even a tiny one.

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For the dinner table

What's the most surprising thing you learned today?

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Next Smart Experiment

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

🧬Share card

Share this experiment

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

Ready?

Claim, Evidence, and Reasoning

Understand the idea. Then look for it everywhere.

Full screen — no distractions

🖨️

Checkout complete lesson on Scientific Argument for 7th Grade

Get the full Scientific Argument track as a printable PDF — all lessons, worksheets, and answer keys.

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Claim, Evidence, and Reasoning — Scientific Argument | 7th Grade Science | LittleActivity