Lesson 43 of 84 · Matter and Reactions
Experiment⭐ 30 XP🧪 Potion KitchenDensity: Sink or Float? (Part 2)
Matter and Reactions.
🎯 Your mission
Set it up. Test it. Be amazed.
⚡ The twist
Mixing two safe things doesn't always make a safe thing.
Mind = Blown
🌈 Every color you see is your brain inventing a translation of light frequencies.
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
- solubility
- concentration
Materials Needed
- paper towels
- thermometer
- strainer
- ice cubes
- salt
Safety First
- Dispose of materials properly after the experiment.
Steps
Read the introduction and identify the main idea of this lesson.
Conduct a chromatography experiment: use a coffee filter and markers to separate the pigments in different colored inks.
Observe what happens and describe it in detail.
Record your observations in your science journal with measurements and descriptions.
Check Your Understanding
Question 1
1 of 3What is density?
Where you see this in real life
This is happening in your kitchen right now — every time food cooks.
Stretch Challenge
Try this in real life this week.
Find one ingredient in a snack and look up what it does.
For the dinner table
“What's something we cook that mixes things together this way?”
Next Smart Experiment
We'll pick an experiment that matches exactly how you're thinking right now.
Share this experiment
Send it to a parent who's looking for a 10-minute kitchen science win.
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