SC.6.N.2.2

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

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

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

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

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

• Repetition

• Replication

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

Tags

NGSS.MS-PS2-2

How many variables should be changed in an experiment?

• ONE

• TWENTY

• THREE

• TEN

Tags

NGSS.MS-PS2-2

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

What is empirical evidence?

• Evidence that comes from scientific testing.

• Evidence that you think but has never been tested.

Tags

NGSS.HS-LS4-1

NGSS.HS-PS1-2

NGSS.HS-PS2-5

Pure water is neutral. If water is neither an acid nor a base, what is the pH of water?

• 0

• 7

• 10

Which best describes the relationship between temperature and dissolved oxygen in a lake?

• As temperature increases, dissolved oxygen increases.

• As temperature increases, dissolved oxygen decreases.

• As temperature decreases, dissolved oxygen decreases.

• A change in temperature has no effect on dissolved oxygen.