1.3.4 Life Science S1

1.3.4 Life Science S1

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Four Types of Models

• Conceptual - mental image or idea to show something

• Physical - a replica that can be seen and held and is used to show details about an object

• Mathematical - numbers, equations or calculations used to show relationships and make predictions

• Computer - mathematical model run by a computer to make predictions about very complex things

Poll

Which type of model is this?

• Conceptual

• Physical

• Mathematical

• Computer

Multiple Choice

Which type of model is this?

• Conceptual

• Physical

• Mathematical

• Computer

Poll

Which type of model is this?

• Conceptual

• Physical

• Mathematical

• Computer

Poll

Which type of model is this (weather map)?

• Conceptual

• Physical

• Mathematical

• Computer

Multiple Choice

Which one is an example of a CONCEPTUAL model?

• Map of the U.S.

• Matchbox car

• Flow chart of how students will move through the building

Multiple Choice

What is the scale factor?

8x6x10 to 12x9x15

• 1

• 1.5

• 2

• 2.5

Multiple Choice

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

Multiple Select

Pick the two 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

Multiple Choice

Sal is studying the solar system. He makes a physical model using different-sized foam balls to represent the planets. Which best describes why a physical model is a useful tool for studying the solar system?

• Solar system models can be used to study a system that is too big to study directly.

• A model of the solar system eliminates the need for scientists to study the solar system directly.

• A model of the solar system provides an exact replica of the actual solar system, so scientists can experience what each planet is like.

• A model of the solar system can provide more data about the solar system than direct observations.

Multiple Choice

Which of these is not a model?

• hot wheels/match box car

• action figure doll

• dump truck

• a picture of the inside of humdinger

Multiple Choice

The height of a telephone pole on a map is 6 cm. The scale is 2cm:20m. What is the actual height of the telephone pole?

• 6 m
• 10 m
• 18 m
• 60 m

Multiple Choice

What is the scale factor?

5x7 is scaled to 20x28

• 4

• .25

• 5

• 6

Multiple Choice

**** A model of a planned baseball stadium is 2 ft wide. The actual stadium will be 200 yd wide. What is the scale?

• 2 feet = 50 yards
• 1 foot = 200 yards
• 1 foot = 100 yards
• 1 foot = 50 yards