Creating a Scientific Model

Why do we use models?

• Simplify complex processes• Accurately represent a structures• Memory tool to help us learn• Make predictions or to develop scenarios

Types of Models

• Actual physical representation also called replicas.

Types of Models- Continued

• Labeled drawings/ sketches• Mathmatical or chemical equations

Types of Models-Continued

• Computer Prediction Models- allows us to predict outcomes on a large complex scale

• We use these when we can’t perform a traditional experiment.

How do we create a Model?

• Step 1: Identify the phenomenon/ What do you want to explain?

• Step 2: Work to refine steps/Select type of Model

• Step 3: Apply the theoretical/ What does the model tell us?

• Step 4: Apply the model.

Now try it yourself

• The Phenomenon will be digestion.

• Gross, I know but it is something you all know a little about.

• In this case we are going to create a Model of pictures with labels.

First bite

• How will you represent steps in your model?

• Will you sketch a person or will you use shapes?

Let’s create a Model

• First bite to excretion

(keep it G-rated please!)

• To help you there is an short paragraph about digestion and also a diagram.

• Create your model directly into your notes.

• Colored Pencils are available to make it colorful if you like.

• YOU HAVE 10 Minutes!

Some Examples

Can your model be used in other cases?

Reading a Model

Write out what is happening in the Swimmer’s itch cycle step by step.

Reading a Model

• What organisms must be present to complete the life cycle of the Cercariae organism?

• What type of organisms are “molluscan”?

• Why do you think the creator made two different colored arrows?