Big Idea 1 & 2 Nature of Science

What is changed on purpose during an experiment for testing purposes?

• variable

• inference

• hypothesis

• procedure

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

Why is it important for scientists to perform repeated trials during an experiment?

• To show results are invalid

• To copy from smarter scientists

• To prove your prediction was right

• To validate our results

Tags

NGSS.MS-PS1-2

Which of the following must be true for scientific results to be valid?

• The results should be drawn in a graph.

• The results should be based on evidence.

• The results should support ideas of other scientists.

• The results should match the predictions of the scientist.

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-1

How many variables can be changed in order to conduct a valid experiment?

• 0

• 1

• 2

• 3

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

A scientist is performing an experiment. Which of the following should happen FIRST?

• construct a graph

• draw a conclusion

• determine a question to ask

• determine the procedural steps

Tags

NGSS.MS-PS2-2

"The rock on the ground is jagged and reddish in color," is an example of _____.

• an observation

• a prediction

• an inference

• an experiment

"The green water is polluted," is an example of _____.

• an observation

• a prediction

• an inference

• an experiment

"When you plant a piece of peppermint in soil, nothing will grow," is an example _____.

• an observation

• a prediction

• an inference

• an experiment

"Because 75 mL of the liquid was gone after 2 weeks, it must have evaporated," is an example of _____.

• an observation

• a prediction

• an inference

• an experiment

"The graduated cylinder is plastic and has numbers," is an example _____.

• an observation

• a prediction

• an inference

• an experiment