Density: Sink or Float? (Part 3)

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

ion
isotope

Materials Needed

food coloring
plastic bottles
balloons
measuring cups
paper towels
thermometer

Safety First

Adult supervision recommended.
Do not taste any materials.

Steps

Step 1 — Read

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

Step 2 — Do

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

Step 3 — Observe

Observe what happens and describe it in detail.

Step 4 — Record

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

Check Your Understanding

Question 1

1 of 3

What is density?