SC 6 N 1 2

We tested the effect of water temperature on how fast a sugar cube dissolves. What was NOT a controlled variable?

• Size of Sugar Cube

• Temperature of Water

• Size of Beaker

• Amount of Water

Why did each group test the amount of drops of water a penny could hold before changing their variable?

• It provides more data to include in a lab report

• It ensures that the hypothesis will be correct

• It adds an independent variable to the experiment.

• It is the control and serves as the basis for comparison

What are making multiple sets (trials) of measurements or observations in a scientific investigation.

• Repetition

• Replication

Tags

NGSS.MS-PS2-2

What is the variable manipulated by the experimenter in order to study changes in the outcome variable?

• Independent Variable

• Dependent Variable

• Controlled Variable

• Hypothesis

Tags

NGSS.MS-PS2-2

What is a statement that can be tested scientifically through experiments and/or other scientific investigations.

• Independent Variable

• Dependent Variable

• Controlled Variable

• Hypothesis

How many variables should be changed in an experiment?

• ONE

• TWENTY

• THREE

• TEN

Group 1 found food coloring affects the amount of drops a penny holds.  Group 2 found that food coloring does not.  What should they do?

• Ignore Group 2

• Conduct it again with quarters

• They should repeat the experiment again and compare results

• Conclude that food coloring has no effect

Tags

NGSS.MS-ETS1-3

What is empirical evidence?

• Evidence that comes from scientific testing.

• Evidence that you think but has never been tested.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS3-5

If a large amount of fertilizer enters a lake, which will most likelyhappen?

• The fish population in the lake will increase.

• The temperature of the lake water will increase.

• The number of fish dying in the lake will increase.

• he available food supply for the fish in the lake will increase.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What does pH measure?

• acidity/alkalinity

• dissolved oxygen

• nutrient level

• turbidity