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Lesson 4 of 10 · Properties of Matter

Experiment30 XP🧪 Potion Kitchen

Physical Changes

🧪Lab Brief #4

Properties of Matter.

🎯 Your mission

Run the experiment. Find out what really happens.

⚡ The twist

Color changes mean atoms are rearranging — even if you can't see them.

🤯

Mind = Blown

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

🔮

Make a hypothesis first

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

What You'll Learn

Physical changes alter the appearance of matter without changing its chemical identity. Cutting paper, melting ice, and dissolving sugar are all physical changes.

Key Words

Tap a word to see its definition.

Materials Needed

  • sugar

Safety First

  • Adult supervision required for any heating. Hot glassware looks identical to cold — use tongs.
  • Mop up spills straight away so nobody slips, and keep liquids away from sockets.

Steps

Step 1Read

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

Step 2Do

Test how temperature affects dissolving: dissolve sugar in cold, warm, and hot water. Count stirs needed for each and create a data table.

Step 3Observe

Observe what happens and describe it in detail.

Step 4Record

Record your observations in your science journal with measurements and descriptions.

Check Your Understanding

Question 1

1 of 3

Which is an example of a chemical change?

🌍

Where you see this in real life

This is happening in your kitchen right now — every time food cooks.

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Stretch Challenge

Try this in real life this week.

Find one ingredient in a snack and look up what it does.

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For the dinner table

What's something we cook that mixes things together this way?

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Next Smart Experiment

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🌡️Share card

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Physical Changes

Run the experiment. Find out what really happens.

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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 — all lessons, worksheets, and answer keys.

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Physical Changes — Properties of Matter | 4th Grade Science | LittleActivity