Scientific Investigation Sol

The data table shows the results of an investigation. What information should be used for the column headings marked "X"? (Click the picture to see the diagram enlarged.)

• Trial Number

• Number of Seeds

• Predicted value for the results.

• Average of the data in each column.

Tags

NGSS.MS-LS2-1

A student predicts that similar ice cubes will melt faster in a microwave than in a pot on the stove. How should this hypothesis be tested?

• Measure and compare the volume of the pot and the microwave.

• Determine the volume of liquid water made by each ice cube.

• Observe and record the time for each ice cube to completely change to liquid.

• Identify and record the temperature of each ice cube before each trial.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

If friction increases, then the rolling distance of a marble will decrease. What should be changed to best test this hypothesis?

• Height of the ramp.

• Height and length of the ramp.

• Roughness of the ramp surface.

• Height of the ramp and roughness of the ramp surface.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Students measured the amount of an unknown substance that dissolved in water at different temperatures. What was the independent variable in this investigation?

• Amount of substance dissolved

• Unknown substance used

• Water temperature

• Water volume

Tags

NGSS.MS-PS1-4

Scientists have several ways for evaluating the validity of experimental results. Which of the following is a characteristic shared by all valid scientific investigations?

• The experiments must be long.

• The experiment must produce replicable results.

• The experiment must yield the desired results.

• The experiment must be complex.

Tags

NGSS.MS-PS1-2

How are EXPERIMENTAL and COMPARATIVE investigations different?

• * EXPERIMENTAL requires control / control group.

  * COMPARATIVE does not require control / control group.

• * EXPERIMENTAL requires variables .

  * COMPARATIVE does not require variables.

Which of the following reasons best explains why Pierre's scientific investigation is not an experiment?

How are EXPERIMENTAL and OBSERVATIONAL investigations similar?

• They both require a question that can be researched, a hypothesis and procedures.

• They both require a question that can be researched, procedures and a conclusion

• They both require a hypothesis, and procedures.

Observations or measurements recorded in an investigation are known as?

• data

• precipitation

• temperature

Observations or measurements recorded in an investigation is ______________.

• variation

• data

• adaptive

Tags

NGSS.MS-PS1-2