Developing Models in Science

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

• mass
• matter
• model
• weight

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Select ALL that is true

• A model is a simple representation of a system

• Models are expensive!

• A toy car is a model of a real car

• A model helps you understand a system

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Pick the reasons why we use models

• Models are expensive

• Models help you understand complex systems

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

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

• Simulation

• Modelling

• Manipulation

• Organization

Heat is ___ of the system.

• an input

• a subsystem

• a trigger

• an output

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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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NGSS.MS-ETS1-4

The kidneys are organs that filter wastes out of the blood stream. Which of the following objects could best be used to make a simple model of a kidney?

• block of wood

• coffee filter

• plastic bag

• water pump

A tennis ball could be used to represent the sun because it's round and yellow. Which of the following could also be used to model the sun?

• a light bulb

• an empty cup

• an eraser

• a Kleenex box

What is a scientific model?

• A representation of an object but smaller
• An exact representation made of similar material
• A representation of an object or system
• A familiar copy of an object

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NGSS.MS-LS1-2

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What is the advantage of creating a model of a dinosaur?

• they are too large to easily study 
• they are too complicated to study
• Real dinosaurs cannot be studied because they are extinct
• The model is safer to work with. 

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