G4_U1_L3: How Do Engineers Test and Improve Prototypes?

A model that can be tested and redesigned is called a...

• product

• prototype

• process

Anything that is made to meet a need is a ...

• technology

• prototype

• system

To think how to make a product and prepare sketches is to...

• plan

• test

• improve

People who use math and science to design practical tools are

• scientists

• teachers

• researchers

• engineers

A group of engineers is working in a car. They found out that the first car they made is not very safe. What should they do?

• They should sell the car anyway.

• They should give up on the work.

• They should improve their design.

Anna works for a company making bikes. She uses math and science to make the bikes fast and safe. What is her job?

• A mathematician.

• An engineer.

• A scientist.

• A mechanic.

A computer is used to find information. What is the role of a computer?

• It is a tool to find information.

• It is a process.

• It is a prototype.

• It is an engineer.

Engineers want to build a new spaceship. What should they do first?

• They should evaluate how the prototype worked.

• They should build a model.

• They should test the prototype.

• They should plan a prototype.

Bulldozers, hammers, pencils are all tools. What else do they have in common?

• They all need electricity to work.

• They are all prototypes.

• They are products of technology.

• They all release harmful gases to the environment.

Think of a factory that causes a lot of pollution. What question could an engineer ask?

• What if we could burn coal to make electricity without causing pollution?

• What if we throw away all electrical devices?

• What if we burn more coal?

• What if we burn trees instead of coal?