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Model: A representation of an object or system. Using Models in Science. Uses for models: to describe or explain certain characteristics of things for making predictions - for explaining observations. Examples of models: model rocket model of matter, molecules, or atoms
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Model: A representation of an object or system. Using Models in Science
Uses for models: • to describe or explain certain • characteristics of things • for making predictions • - for explaining observations
Examples of models: • model rocket • model of matter, molecules, or atoms • model of a cell • - model of a building
Models Help You Visualize Information • - Objects as models • - similar characteristics • - Ideas as models • - use an idea to create a model • – use your imagination
Models Are Just the Right Size • - smaller model to represent a large thing • - model of solar system • - larger model to represent a small thing • - model of an atom
Models Help Build Scientific Knowledge • testing hypotheses • - illustrating ideas
Models Can Save Time & Money • small models cost less, take less time to build • small models can be destroyed in • testing
REVIEW 1. Purpose of a model:
1. Purpose of a model: • to represent concepts or characteristics of objects that are difficult to see or hard to explain • to be used as a tool for testing & illustrating theories
2. Everyday examples of models: • - model car • - globe/map • - picture • - statue/figurine
3. When to use a globe: - compare sizes of different countries
When to use a map: when traveling