PHSC Week 3 - Ch1-2 Review

What is the most practical unit when measuring the length of a beetle?

• kilometer

• meter

• decimeter

• millimeter

What is 0 degrees C in Fahrenheit?

• 32

• 18

• 45

• 212

The metric system uses multiples of

• 12

• 20

• 5

• 10

The metric system is most commonly used in the USA

• True

• False

Scientists most commonly use the metric system.

• True

• False

Convert 16 kL to L

• 160 L

• 1.6 L

• 16000 L

• 0.016 L

What is the first step in a scientific investigation?

• Form a hypothesis

• Identify a problem/ question

• Communicate with peers

• Form a conclusion

What is a cost/ benefit analysis?

• A method of decision making

• A step in the scientific method

• An investigation into technology

What is a controlled variable?

• Something that is changed by the scientist in an experiment.

• An observation gathered by the senses.

• Something that you try to keep the same in an experiment.

• Something that changes as a result of the experiment.

What is a manipulated variable?

• Something that is changed by the scientist in an experiment.

• An observation gathered by the senses.

• Something that you try to keep the same in an experiment.

• Something that changes as a result of the experiment.

Tags

NGSS.MS-PS2-2