20

Lesson 20 of 84 ยท Light and Sound

Lesson

What Engineers Do

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

Steps

Step 1 โ€” Read

Talk about what you already know about Light and Sound.

Step 2 โ€” Do

Design a container that keeps an ice cube from melting for as long as possible.

Step 3 โ€” Observe

Compare what happened to what you predicted.

Step 4 โ€” Record

Tell the class one thing you learned today.

Check Your Understanding

Question 1

1 of 3

Why do scientists compare things?

What Engineers Do โ€” Light and Sound | 1st Grade Science | LittleActivity | LittleActivity