Thinking Fountain image (17k)Thinking Fountain text (10k)

Liquid Layers

Q: (9k) Do oil and water mix?

Oil and water have different densities. Oil floats on water because it is less dense than water. A liquid that floats is lighter or less dense than a heavier or more dense liquid that sinks.

Try the experiment below and explore different densities.

Materials (17k)
Collect these materials:

Plastic cups (4)
Clear straw
Plasticine clay
Eye dropper
Rubbing Alcohol
Food Coloring (4 colors)
Measuring cup

Activity image (9k)

1. Put in cups:

Activity image (9k)

2. Make each cup a different color.

Activity image (9k)

3. Push straw into clay.

Activity image (9k)

Experiment: Can you get the liquids to float on top of each other so that you see four different colors?

Hint: Each liquid has a different density.
That makes me think . . . (11k)
Why do you have to shake salad dressing? How can you make an ice cube sink? How does temperature affect a liquid's density?

Yellow dot (9k) Density dessert

Yellow dot (9k) Demonstrating density

Yellow dot (9k) Sinkers and Floaters

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Mind maps (9k)
Connected together
A to Z button (9k)
Index of ideas

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