62
Lesson 62 of 84 · Simple Machines
ExperimentThings That Roll (Part 3)
What You'll Learn
Things with wheels roll easily. That is why wagons have wheels!
Key Words
- push
- pull
- fast
Materials Needed
- pencils
- toy cars
- ramps
- string
Safety First
- Handle glass items carefully to avoid breakage.
Steps
Step 1 — Read
Look at the picture and point to what you see.
Step 2 — Do
Try pulling a wagon with one hand, then two hands. Which is easier?
Step 3 — Observe
What happened? Tell a grown-up what you noticed.
Step 4 — Record
Tell a grown-up your favorite part of the activity.
Check Your Understanding
Question 1
1 of 3What do wheels help us do?