What is the main purpose of the "Purpose/Question" step?

• To list materials needed for the experiment

• To clearly define what you want to know or investigate

• To write the procedure in detail

• To graph the data collected

Tags

NGSS.HS-LS3-1

Which of these is the proper format for a hypothesis?

• "Because…, if…, then…"

• "If…, then…, because…"

• "The data will show…"

• "I think it might…"

Which item should be included in a good procedure to ensure repeatability?

• Vague steps so students can decide how to do it

• A list of possible materials but no amounts

• Step-by-step instructions with exact materials and measurements

• Conclusions from a previous experiment

Which is the best way to organize raw numbers collected during an experiment?

• A paragraph summary

• A table

• A pie chart only

• A sketch with no labels

Tags

NGSS.MS-PS3-1

Which graph type is usually best to show how a measurement changes over time?

• Pie chart

• Bar graph

• Line graph

• Venn diagram

What is the difference between "Results" and "Conclusion"?

• Results are opinions; conclusions are raw numbers.

• Results are raw data/facts; conclusions interpret the data and explain why.

• Results come after conclusion.

• There is no difference.

Tags

NGSS.MS-LS1-5

Which of the following is a qualitative observation?

• The mass increased by 5.2 g.

• The temperature rose from 20°C to 30°C.

• The liquid turned cloudy and smelled sweet.

• The sample length measured 12.0 cm.

In an experiment testing fertilizer type on plant growth: "Type of fertilizer" is the…

• Dependent variable

• Constant

• Independent variable

• Control group

In that same fertilizer experiment, "plant height after four weeks" is the…

• Independent variable

• Dependent variable

• Constant

• Hypothesis

Which of these is an example of a constant (control variable)?

• Using different amounts of sunlight for each plant

• Measuring height only for the tallest plant

• Giving every plant the same amount of water each day

• Changing pot sizes for each group