The Scientific Method

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

hypothesis
variable
control

Materials Needed

plastic wrap
cardboard
tape

Safety First

Protect your work surface with newspaper or plastic.
Adult supervision recommended.

Steps

Step 1 — Read

Read about Data and Evidence and write down three key facts.

Step 2 — Do

Design and build a bridge from newspaper and tape that can hold a textbook. Test it and redesign to make it stronger.

Step 3 — Observe

Observe what happens and describe it in detail.

Step 4 — Record

Record your observations in your science journal with measurements and descriptions.

Check Your Understanding

Question 1

1 of 3

What is a scientific model?