76

Lesson 76 of 84 ยท Properties of Matter

Lessonโญ 30 XP๐Ÿงช Potion Kitchen

Mixtures and Solutions (Part 3)

๐ŸงชLab Brief #76

Properties of Matter.

๐ŸŽฏ Your mission

Learn the rule. Then catch nature using it.

โšก The twist

Color changes mean atoms are rearranging โ€” even if you can't see them.

๐Ÿคฏ

Mind = Blown

๐ŸŒˆ Every color you see is your brain inventing a translation of light frequencies.

๐Ÿ”ฎ

Make a hypothesis first

Before you mix: what color do you think it'll turn?

What You'll Learn

Solutions are special mixtures where one substance dissolves completely in another. Salt water is a solution where salt (solute) dissolves in water (solvent).

Key Words

  • element
  • compound

Steps

Step 1 โ€” Read

Read about Properties of Matter and write down three key facts.

Step 2 โ€” Do

Mix baking soda and vinegar in a sealed bag. Weigh the bag before and after. Did the mass change? Explain why or why not using the law of conservation of mass.

Step 3 โ€” Observe

Compare the before and after states.

Step 4 โ€” Record

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

Check Your Understanding

Question 1

1 of 3

How is a compound different from a mixture?

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Where you see this in real life

Your toothpaste, your soap, even your breakfast involves this.

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Stretch Challenge

Try this in real life this week.

Ask a grown-up to help you mix two safe kitchen things. Predict what will happen first.

๐Ÿ‘จโ€๐Ÿ‘ฉโ€๐Ÿ‘ง

For the dinner table

โ€œWhat's something we cook that mixes things together this way?โ€

๐ŸŽฏ

Next Smart Experiment

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

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Share this experiment

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

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Checkout complete lesson on Properties of Matter for 4th Grade

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

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