80
Lesson 80 of 84 · Engineering and Design
ExperimentWhat Engineers Do (Part 4)
What You'll Learn
An investigation is a careful study to answer a question. What would you like to investigate?
Key Words
- try again
- observe
- question
Materials Needed
- rubber bands
- string
- cups
- aluminum foil
- ruler
Safety First
- Wear safety goggles when mixing liquids.
Steps
Step 1 — Read
Talk about what you already know about Engineering and Design.
Step 2 — Do
Design a container that keeps an ice cube from melting for as long as possible.
Step 3 — Observe
Compare what happened to what you predicted.
Step 4 — Record
Tell the class one thing you learned today.
Check Your Understanding
Question 1
1 of 3Why do scientists compare things?