Testing and Improving Prototypes

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

refraction
hypothesis

Materials Needed

cardboard
tape
scissors
straws

Safety First

Clean up spills immediately to prevent slipping.

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?