Designing Solutions to Problems (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

iteration
wavelength
hypothesis

Materials Needed

plastic wrap
cardboard
tape

Safety First

Do not taste any materials.
Wear safety goggles when mixing liquids.
Wash hands after handling materials.

Steps

Step 1 — Read

Read about Human Impacts on Earth and write down three key facts.

Step 2 — Do

Create a solar oven from a pizza box lined with foil. Measure the temperature inside on a sunny day. Try melting chocolate or cheese.

Step 3 — Observe

Note any unexpected results and think about why they happened.

Step 4 — Record

Share your findings with the class or a partner and discuss what you learned.

Check Your Understanding

Question 1

1 of 3

What is a scientific model?