Testing and Improving Prototypes (Part 3)

What You'll Learn

The scientific method is a systematic approach to investigating questions. It involves making observations, forming hypotheses, conducting experiments, analyzing data, and drawing conclusions.

Key Words

wavelength
hypothesis
variable

Materials Needed

cardboard
tape
scissors

Safety First

Wear safety goggles when mixing liquids.
Wash hands after handling materials.

Steps

Step 1 — Read

Read and learn: The scientific method is a systematic approach to investigating questions. It involves making observations, forming hypotheses, conducting experiments, analyzing data, and drawing conclusions.

Step 2 — Do

Measure and record your data in a table.

Step 3 — Observe

Observe what happens and describe it in detail.

Step 4 — Record

Record your observations in your science journal.

Check Your Understanding

Question 1

1 of 3

What is a hypothesis?