Types of ModelsTypes of Models

• Physical models: Your model airplanes, dolls.

• Mathematical models: Weather forecasts.

• Conceptual Models: Atoms, and the creation of the universe.

Physical ModelsPhysical Models

• Scientists use Physical models to see how things work before they make the final product.

• This is safer and less expensive. Why?

Mathematical modelMathematical model• Scientists figure stuff

out using math.• Some can be so

complex only computers can figure them out!!

• This weather map is the result of Mathematical modeling.

Conceptual ModelsConceptual Models• Basically a system of

ideas that form theories.• In the case of the atom to

the left, it is too small to really see, so scientists create a conceptual model to show what they think it looks like.

MeasurementMeasurement• Scientists need to use

the same method for measuring so they can compare their measurements.

• Scientists always use the Metric system.

• Picture is of a metric ruler.

TemperatureTemperature• Temperature is the

measure of how hot or cold an object is.

• Scientists use Celsius to describe the temperature of an object.

• 30's hot ,20's nice10's cold ,zero's ice.