Scientific & Engineering Practices Review #2

Where should the student position himself to read the graduated cylinder properly?

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Students used various temperatures of water to see which one dissolved candy faster.

What was the independent variable?

• amount of candy

• amount of water

• temperature of water

• time for candy to dissolve

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Students wanted to see if the type of material affected the change in the material's temperature after being placed under a heat lamp for 10 minutes.

What is the dependent variable for this investigation?

• type of material (rocks, sand etc)

• temperature after 10 minutes

• time under the lamp

• heat lamp, amount of material

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

In the experiment shown, plant A received 50 mL of coke each day, plant B received 50 mL of juice, and plant C received 50 mL of water. Every day for one week, plant growth was measured. Which group served as the control group?

• plant A

• plant B

• plant C

• there was no control group

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Which culture of bacteria had the most overall growth?

• 1

• 2

• 3

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

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.

The unit scientists use to measure length is

• inch

• gram

• meter

• foot

On a graph, on which axis is the dependent variable placed?

• y-axis

• x-axis

Bob wanted to conduct an experiment to determine which type of soap makes the largest soap bubbles. What must remain the same in every trial for the experiment to work? CHOOSE ALL THAT APPLY

• the type of soap used

• the wand used to make the bubbles

• the size of the bubbles

• the amount of soap used

Mr. Frankline filled a bucket with water to clean his floor. Does his bucket probably have 9 L or 9 mL?

• 9 L

• 9 mL