70
Lesson 70 of 84 · Scientific Argument
ExperimentScientific Models: Representing Reality (Part 4)
What You'll Learn
Models help scientists represent complex systems. Physical models (like a globe), mathematical models (like equations), and computer models all simplify reality to make it easier to study.
Key Words
- control
- data
- observation
Materials Needed
- rubber bands
- string
- cups
- aluminum foil
- ruler
- markers
Safety First
- Work in a well-ventilated area when using vinegar or other strong-smelling substances.
- Dispose of materials properly after the experiment.
Steps
Step 1 — Read
Read and learn: Models help scientists represent complex systems. Physical models (like a globe), mathematical models (like equations), and computer models all simplify reality to make it easier to study.
Step 2 — Do
Conduct the experiment by following the instructions.
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 3What makes a good scientific investigation?