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Models can't be exactly the same as the real thing. There are always parts of the real thing that are missing in the model.
Read the following questions.
You should be able to answer them.
If you can great......if not, you need to go back over this prezi and re-read your text.
Here's a model from NASA
We will be studying currents this year. This model is called the great ocean conveyor belt.
Sometimes it takes several models to explain something. For instance, no single model can explain light. Light behaves like a particle and like a wave. Depending on the circumstances, scientists decide which model to use.
Sir Isaac Newton
Sometimes there are competing models like the causes of the extinction of the dinosaurs.
Meteorites Hit
Dinosaurs 'gassed' themselves into extinction, British scientists say.
Huge Volcanic Explosions
What is an idea model?
Scientists need models because reality is complex and difficult. Size alone makes it impossible for us to study the actual thing so we need to make a representation of it. Models allow us to study very large and very small things in a way that is manageable.
Nothing is perfect!!!
Models are always subject to being thrown out.
Models can't be exactly the same as the real thing. There are always parts of the model that are missing.
What is a computer model?
What is a physical model?
Physical models are smaller (or larger if the actual thing is really small) and simpler representations of the thing being studied. A globe or a map is a physical model of a portion or all of Earth. You can make a model of anything.