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Lesson 43 of 84 ยท Matter

Simulationโญ 30 XP๐Ÿงช Potion Kitchen

Density: Sink or Float? (Part 2)

๐ŸงชLab Brief #43

Density: Sink or Float? (Part 2).

๐ŸŽฏ Your mission

Push the limits. See what changes.

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

Density is how much mass is packed into a given volume. Objects denser than water sink, while less dense objects float. Oil floats on water because it is less dense.

Key Words

  • mixture
  • solution
  • evaporation

Steps

Step 1 โ€” Read

Read the introduction and identify the main idea of this lesson.

Step 2 โ€” Do

Conduct a chromatography experiment: use a coffee filter and markers to separate the pigments in different colored inks.

Step 3 โ€” Observe

Observe what happens and describe it in detail.

Step 4 โ€” Record

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

Check Your Understanding

Question 1

1 of 3

What is density?

๐ŸŒ

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.

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 Matter for 3rd Grade

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

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Density: Sink or Float? (Part 2) โ€” Matter | 3rd Grade Science | LittleActivity | LittleActivity