Science Unit 2 - The Engineering Process

What is technology?

• Anything made by nature

• Anything that costs a lot of money

• Anything people make that has no purpose

• Anything that people make or do that changes the natural world

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Engineers designed plans to make freezers for food. What main problem did freezing food solve?

• How to keep food fresh

• How to make ice cubes

• How to make ice cream

• How to make it easier to pack food into trucks

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Alex is building a bridge between two desks for a toy car to drive across. Which material will Alex most likely use to build the base of the bridge?

• Marshmallows

• Playing cards

• Toothpicks

• Toy car

Tags

NGSS.3-5-ETS1-1

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How did these students solve the problem of how to get in and out of their tree house?

• They built a rope ladder

• They built steps on the tree trunk

• They climbed branches to reach the tree house

• They built it low so they can reach it from the ground

Engineers designed a machine that will decrease air pollution. What is the main purpose of telling others about this machine?

• To build a prototype

• To gather data about a problem

• To keep people from copying the design

• To help other people solve the same problem

Misha and Kira are preparing to build a tree house. Which steps of the design process will they use before they start building their tree house?

• Redesign. Communicate.

• Find problems. Communicate.

• Test and improve a prototype. Redesign.

• Find problems. Plan and build a prototype.

Which of these technologies can transport people the farthest distance in the shortest amount

of time?

• an airplane

• a bicycle

• a bus

• a skateboard

Tags

NGSS.MS-ETS1-2

Dishwashers and clothes dryers are fairly new technologies.

Which is a way that these appliances changed people’s lives?

• They make dishes and clothes last longer.

• They never break, so people do not have to worry about them.

• They make chores take longer because these appliances must be watched.

• They make these chores take less time, which lets people to do other things.