Science & Engineering Practices

How does scientific knowledge change over time?

• taking surveys and opinion polls

• adding websites on the Internet

• collecting new information about the natural world

• asking scientific questions

Models can be all of the following EXCEPT...

• pictures

• computer printer

• 3-D replica

• diagrams/drawing

Which of the following is a quantitative observation?

• The robin egg is blue with brown specks.

• The clouds are lower in the atmosphere today than yesterday.

• The butterfly landed and fed from the purple flowers along the path.

• At the end of the week, the plant heights were 6 in, 11 in., 4 in., and 8 in.

Tags

NGSS.MS-PS3-1

Which of the following is a qualitative observation?

• The mass of the sample is 562 grams.

• The temperature was 24 degrees Celsius.

• There were two caterpillars eating the leaf.

• The grizzly bear's summer coat is thin and yellowish.

On a line graph, what do you call a straight line?

• linear

• nonlinear

• constant

• non-constant

How do you control variable during an experiment?

• change only the variable you want to study the effects of

• makes hypotheses throughout the experiment

• change your procedure as needed

• change every variable as often as possible

Which of these would cause faulty results in an experiment?

• the table has a brown surface

• there are different amounts of liquid in each beaker

• the experiment began in the morning

• the experiment was completed in August

What is the attitude scientists have that keep them from accepting ideas that could be untrue?

• open-mindedness

• curiosity

• skepticism

• creativity

Once you develop a question in science, what steps follows for you to answer your question?

• collect data and interpret it

• draw conclusions

• do research

• design an experiment

Tags

NGSS.MS-LS2-1

NGSS.MS-PS2-2

Which of the following has a qualitative answer?

• Who dropped their pencil?

• How far did the car travel?

• What color was the shell on the crab?

• What is the humidity percentage of the air?