75
Lesson 75 of 84 · Light and Sound
ExperimentBuilding Stronger Structures (Part 4)
What You'll Learn
A prototype is an early version of something you are building. Test it, then make it better!
Key Words
- build
- plan
- problem
Materials Needed
- plastic wrap
- cardboard
- tape
- scissors
- straws
- paper clips
Safety First
- Be careful with scissors — ask an adult for help if needed.
- Do not look directly at the sun or bright lights.
- Clean up spills immediately to prevent slipping.
Steps
Step 1 — Read
Talk about what you already know about Light and Sound.
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 3What should you do if your experiment doesn't work?