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Lesson 45 of 84 · Human Impacts on Earth
ExperimentThe Scientific Method (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
- hypothesis
- variable
- control
Materials Needed
- markers
- popsicle sticks
- pennies
- plastic wrap
- cardboard
- tape
Safety First
- Do not mix unknown chemicals together.
Steps
Step 1 — Read
Read about Human Impacts on Earth 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 3What is a scientific model?