Naima builds a paper bridge between two stacks of books It falls down when she pushes a toy car across it. Which material should she make her bridge from next?

• string

• cardboard

• taller books

• different colored paper

What is the main goal of the design process?

• to write reports

• to make prototypes

• to make charts and graphs

• to find solutions to problems

Which of these is a solution to a design problem?

• a tornado

• a bird's nest

• a flooded town

• a ringing telephone

Which of these is an example of technology?

• a metal hip

• a drawing of an engine

• developing a hypothesis

• thinking of a new theory

Jose and Mark are planning to build a tree house. Which of these is not a problem they might find as they plan?

• how to keep the tree alive

• how large to make the tree house

• where to put the building in the tree

• how to get tools up to the construction sity

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

• how to make ice cubes

• how to make ice cream

• how to keep food from spoiling

• how to make it easier to pack food into trucks

Rodrigo made a bird feeder. He placed the feeder in the yard and watched the birds. He saw that the birds could not get through the hole in the feeder. What should Rodrigo do next?

• redesign

• communicate

• plan and build

• find a problem

A company wants to build a new type of spaceship for transporting astronauts to the moon. Which action should the company take first?

• build a model

• identify needs

• draw the design

• test the prototype

Computer designs have gotten better over the years. WHich example is not a computer improvement?

• they are faster

• they are lighter

• they can store more information

• they can be used in only one place at a time

Eva wants to build a doghouse. She lists some steps she should take. Eva forgot about step 3. What is step 3?

1. find a problem,

2. plan and build,

3?

4 redesign

5 communicate

• keep going

• choose an idea

• test and improve

• think about ideas