19
Lesson 19 of 84 · Sink and Float
ExperimentWhat Happens When We Mix?
What You'll Learn
Mud is a mixture of dirt and water. What happens when mud dries out?
Key Words
- dry
- bubble
Materials Needed
- baking soda
- cups
- spoons
Safety First
- Use materials only as directed in the experiment.
Steps
Step 1 — Read
Listen carefully and repeat the new words.
Step 2 — Do
Sort objects into groups: hard things and soft things.
Step 3 — Observe
Did anything change? Point to what is different.
Step 4 — Record
Point to the things you used in the activity.
Check Your Understanding
Question 1
1 of 3Does a rock sink in water?