Scientific Models: Representing Reality

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

Steps

Step 1 — Read

Review the background information on Human Impacts on Earth before starting.

Step 2 — Do

Build a simple seismograph using a pen, cup, string, and paper. Shake the table and record the marks. Can you detect bigger vs. smaller shakes?

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 makes a good scientific investigation?