Why Do We Use Models in Science

A _____________________ is something that scientists use to represent an object of process

• mass

• matter

• model

• weight

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Select ALL that is true:

• A model is a simple representation of a system

• A toy car is a model of a real car

• Models are expensive

• A model helps you understand a system

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Pick the reasons why we use models

• Models are expensive

• Models are used when systems are too expensive or impossible to use

• Models help you understand complex systems

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The manipulation of a model in such a way that it behaves like a real system is called:

• simulation

• manipulation

• modelling

• organization

Models can be helpful in scientific investigations because

• it may not be possible to work with the real thing

• they can be smaller and more manageable than the real thing

• they can be safer to work with than the real thing

• all of the above

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What is a scientific model?

• A representation of an object but smaller

• A representation of an object or system

• An exact representation made of similar material

• A familiar copy of an object

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A type of model that is in your head

• mental model

• scale model

• real-time model

Something that represents the real thing

• Real-time model

• scale model

• computer model

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A type of model that has length and width

• two-dimensional model

• three-dimensional model

• computer model

A device that send weather images back to Earth

• weather

• Satelite

• scale model

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