1. Warm-up
1.What is the speed of a car that has traveled 50 km in 30 minutes?
50 km / 30 min = 1.67 km/min or
50,000 m /1800s = m/s

2. Using a Scientific Model to Predict Speed
Key Question:
Why are scientific models important?

3. What is a model?
A representation of a real life structure, idea, or concept.

4. Types of Models 1.Mental models
2.Physical models – can be looked at, touched, and measured
3.Conceptual models – describes a system and how it works

5. 4.Graphic models – shows the relationship between two variables on a graph so that the relationship is easily seen and understood.

6. Speed vs. time graph
A Speed vs. time graph shows both the relationship between the variables as well as how much one variable affects another.

7. Speed vs. time graph

8. Graph that shows a steady relationship between variables will help us identify relationships that exist in nature and can also be used to predict unknown values.

9. Why are scientific models important?
They provide a way to visualize and sometimes manipulate a concept or idea.

10. The End