Science Methods

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• They want to move the ramp each time

• The carpet on the floor may have slowed down the car

• They may want to try pushing the car instead of releasing it

• Someone could have been distracted and might not have stopped the stopwatch right away

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Which is one reason that engineers should 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 occured

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• hydroponics uses math to solve everyday problems

• it is a technique that involves one of the human senses

• biology and engineering are connected to meet human food needs

• the success of hydroponics is used to measure success in all growing plants

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NGSS.MS-LS1-5

Scientists conduct investigations. What is the main reason for scientific investigations?

• to practice doing experiments

• to learn about recent discoveries

• to answer questions about the natural world

• to demonstrate scientific procedures

Some scientists duplicate research of other scientists. Which of the following is the most likely reason scientists do this?

• to form new theories

• to verify the work is accurate

• to win prizes for their work

• to improve the research

Which of the following describes how failure can be a part of the design process?

• Once a prototype fails, the process has ended.

• Failure is not part of the design process.

• Failure convinces engineers to give up.

• Failure can reveal areas that need improvement.

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NGSS.MS-ETS1-3

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• The product is redesigned based on evidence that is observed and gathered.

• The design is detailed in drawings.

• The design is measured and evaluated

• The product design is copyrighted and patented

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• build a prototype, draw a prototype, set a purpose

• record data, draw a prototype, redesign

• draw conclusions, build a prototype, test a prototype

• think about procedure, record data, draw conclusions

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NGSS.MS-ETS1-1