70

Lesson 70 of 84 ยท Matter

Experimentโญ 30 XP๐Ÿงช Potion Kitchen

Boiling Points and Melting Points (Part 2)

๐ŸงชLab Brief #70

Boiling Points and Melting Points (Part 2).

๐ŸŽฏ Your mission

Set it up. Test it. Be amazed.

โšก The twist

Mixing two safe things doesn't always make a safe thing.

๐Ÿคฏ

Mind = Blown

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

๐Ÿ”ฎ

Make a hypothesis first

Predict: will the mixture get hotter, colder, or stay the same?

What You'll Learn

Matter exists in three common states: solid, liquid, and gas. Solids have a fixed shape and volume, liquids have a fixed volume but take the shape of their container, and gases fill any container.

Key Words

  • liquid
  • molecule
  • atom

Materials Needed

  • food coloring
  • plastic bottles
  • balloons

Safety First

  • Wear safety goggles when mixing liquids.
  • Wash hands after handling materials.
  • Be careful with scissors โ€” ask an adult for help if needed.

Steps

Step 1 โ€” Read

Study the diagram and label the parts you recognize.

Step 2 โ€” Do

Create a density column: carefully layer honey, dish soap, water, vegetable oil, and rubbing alcohol in a tall glass. Drop small objects in to test where they float.

Step 3 โ€” Observe

Note any unexpected results and think about why they happened.

Step 4 โ€” Record

Share your findings with the class or a partner and discuss what you learned.

Check Your Understanding

Question 1

1 of 3

What happens during evaporation?

๐ŸŒ

Where you see this in real life

This is happening in your kitchen right now โ€” every time food cooks.

๐Ÿ†

Stretch Challenge

Try this in real life this week.

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

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.

โšกShare card

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

๐Ÿ–จ๏ธ

Checkout complete lesson on Matter for 3rd Grade

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

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Boiling Points and Melting Points (Part 2) โ€” Matter | 3rd Grade Science | LittleActivity | LittleActivity