Building a Scientific Argument

What You'll Learn

Scientific arguments require a claim, evidence, and reasoning. The claim states what you believe, evidence provides data supporting it, and reasoning explains how the evidence supports the claim.

Key Words

model
prototype

Materials Needed

straws
paper clips
rubber bands
string
cups
aluminum foil

Safety First

Do not look directly at the sun or bright lights.
Clean up spills immediately to prevent slipping.

Steps

Step 1 — Read

Read and learn: Scientific arguments require a claim, evidence, and reasoning. The claim states what you believe, evidence provides data supporting it, and reasoning explains how the evidence supports the claim.

Step 2 — Do

Build your model using the materials provided.

Step 3 — Observe

Look for patterns in your observations.

Step 4 — Record

Make a graph or chart showing your results.

Check Your Understanding

Question 1

1 of 3

What does a prism do to white light?