Engineering and Technology

Engineers use a design process to invent or improve machines. What is the first step in this design process?

• Make a prototype of the design.

• Make a graph to show how well the design worked.

• Keep notes and drawings of the design throughout the process.

• Identify a need or problem to be solved.

Tags

NGSS.MS-ETS1-1

A student team designs a device to meet a human need. Then the students build a prototype.

Which of these best describes the purpose of a prototype?

• to develop ideas for a solution

• to show how the design will look

• to test the quality of the conclusions

• to see whether it meets design criteria

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NGSS.MS-ETS1-3

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Why should engineers test their designs?

• to find ways to improve their designs

• to make them smaller and more compact

• to change the design to be more profitable

• to discover solutions to problems that have not yet occurred

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NGSS.MS-ETS1-3

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Which is a true statement about the work of engineers and the work of scientists?

• Engineers analyze data, and scientists do not.

• Scientists often work in teams, and engineers do not.

• Both follow a series of steps to find solutions to problems.

Why do scientists follow the design process?

• to find solutions to problems

• to understand how Earth formed

• to practice making measurements

• to use the same solution for every problem.

Tags

NGSS.MS-ETS1-1

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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

Jason and Luis have designed and tested a tool to help them construct a backyard birdhouse. Now they are writing a summary of their conclusions.

What will these conclusions communicate?

• whether the data reflected the purpose

• whether the prototype met the criteria

• whether the design matched the model

• whether the design process created the data

Tags

NGSS.MS-ETS1-3

An endoscope is a probe that doctors use to examine parts of the body from the inside.

Which scientific word describes an endoscope?

• Inquiry

• Technology

• Knowledge

• Observation

Tags

NGSS.MS-PS1-3

The objects on Maria’s shelves are disorganized and often fall to the floor. She thinks of four ways to solve this problem and numbers her designs 1, 2, 3, and 4. For each design, she builds a prototype and tests it. She records data on how well each design meets her criteria.

Which design best meets Maria’s criteria?

• design 1

• design 2

• design 3

• design 4

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-1

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Engineers want to develop a more efficient dishwasher by decreasing the running time and the amount of water used per cycle. They design and test four different dishwasher prototypes. The bar graph shows the results of their tests.

Which model best meets the design criteria?

• model A

• model B

• model C

• model D

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-1

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