Unit 2 Test

1. What is the main goal of the design process?

• To write reports

• To make a prototype

• To make charts and graphs

• To find solutions and solve a problems

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

• how to make ice cubes

• how to keep food fresh

• how to make ice cream

• how to make it easier to pack food into trucks

3.  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

4. Nayla builds a paper bridge between two stacks of books. It collapses when she pushes a toy car across it. Which material would not help her to improve the bridge?

• markers

• paper

• straws

• tape

5. Kayla lives in a city with a lot of people but not much land. There is not enough space for each family to have its own house. Which is a way engineers can help solve the problem?

• by identifying not enough land as the problem in the city

• by communicating with other engineers to share the problem

• by designing and building tall buildings that can house many people

• by having people from different families live together in the same house

6.  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 do other things.

7.  Rodrigo plans and makes a bird feeder. He puts the bird feeder in his yard, but the birds cannot get food because of the small hole in the feeder. Which should Rodrigo do 𝐧𝐞𝐱𝐭?

• communicate your results

• find a problem

• plan and build

• redesign

8.  Veronica builds a paper bridge between two stacks of books.  Which is 𝙣𝙤𝙩 a way to make the paper bridge stronger?

• adding layers of paper to the bridge

• using a heavier toy car to cross the bridge

• taping the sides of the bridge to the books

• adding craft stick supports under the bridge

9. Hannah has designed and built her first bench. Which steps of the design process will she use now?

• Redesign and communicate

• Find the problems and communicate

• Test to improve and redesign

• Plan and build a prototype

10.  Jack made a paper bag to hold his books. When he put his books in it, the bottom of the bag ripped, and the books fell out. What claim tells what he could do to improve the design?

• He could make the bag taller and wider.

• He could change the color of the paper he uses.

• He could warn people not to put books in the bag.

• He could add a layer of paper to the bottom of the bag.