Experimental Design Quiz Practice

The variables in an experiment that must be kept the same are _______

• Dependent

• Independent

• Constant

• All of the above

What is an independent variable?

• What "I" change in an experiment.

• What is measured in an experiment.

• What you keep the same in the experiment.

• What is observed in an experiment.

What is a dependent variable?

• What "I" change in an experiment.

• What is measured or observed in an experiment.

• What you keep the same in the experiment.

• What goes on the x-axis of a graph.

How do you organize variables on a graph?

• The independent variable goes on the y-axis and the dependent on the x-axis.

• The independent variable goes on the x-axis and the dependent on the y-axis.

• The independent variable goes on the y-axis and the constants on the x-axis.

• The independent variable goes on the x-axis and the constants on the y-axis.

Which is the best testable question for the ShamWow experiment?

• Which towel will absorb the most liquid?

• How does the type of towel material affect how much liquid it will absorb?

• Will the ShamWow absorb the most water?

• How does the size of towel affect how much liquid it will absorb?

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

Which of the following statements is the best hypothesis for the Shamwow experiment?

• The Shamwow will absorb the most liquid because Vince said it absorbs 20x its weight in the informercial.

• The Shamwow will absorb the most liquid.

• If I test liquid absorption with a Shamwow and microfiber towel, then the Shamwow will absorb the most liquid.

• If I test liquid absorption with a Shamwow and microfiber towel, then the Shamwow will absorb the most liquid because the Shamwow can absorb 10-20x its weight.

Tags

NGSS.MS-PS1-2

Which is the best example of a materials list for the Shamwow experiment?

• Shamwow, purple towel, water, soda

• 1 Shamwow, 1 purple towel, 1 beaker of water, and 1 can of soda

• 1 6x6 inch Shamwow, 1 6x6 inch microfiber towel, 100 mL of water, 100 ml of soda

• 1 6x6 inch Shamwow, 1 6x6 inch microfiber towel, 100 mL of water, 100 ml of soda, triple beam balance

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

How can the procedure be improved for the Shamwow experiment?

1. Take 2 towels- 1 Shamwow and 1 microfiber.

2. Weigh both towels.

3. Soak up liquid with both towels.

4. Weigh both towels again to see which one absorbs the most liquid.

• Include specific measurements and units for towel sizes and liquid.

• Include more detailed descriptions of how to complete the experiment.

• Complete multiple trials for each towel and find the average amount of liquid absorbed by each towel.

• All of the above.

Tags

NGSS.MS-ETS1-2

NGSS.MS-ETS1-3

Which of the following best describe the constant variables for the Shamwow experiment?

• Same size of Shamwow and microfiber towel, types of towels

• Same size of Shamwow and microfiber towel, amount of liquid absorbed by each towel

• Same size of Shamwow and microfiber towel, amount of liquid in each beaker to be absorbed by the towels

• Same scale, amount of liquid absorbed by each towel

Tags

NGSS.MS-ETS1-1

What is the independent variable for the Shamwow experiment?

• Towel material

• Amount of liquid absorbed by the towel

• Size of towel

• Weight of towel