Penny Lab

Why did we use 5 pennies instead of one during the lab? Select the THREE correct reasons.

• This would provide more data.

• This would provide more evidence.

• 5 trials provide more proof than one trial.

• This was not needed since one trial is more than enough evidence.

Which was the control in the penny lab?

• Dropper

• soap

• penny

• tap water

What was the dependent variable in the penny lab?

• types of water

• growth of plant

• color of lights

• number of drops

Which contained the surfactant in the penny lab?

• tap water

• sugar water

• soapy water

• penny

In the penny lab, the pennies were __________.

• control variables

• dependent variables

• independent variables

In the penny lab, the vinegar and water were ___________.

• control variables

• dependent variables

• independent variables

• almost dependent

In the penny lab, the color change was a _______________.

• control variable

• dependent variable

• independent variable

• semi-control variable

What is the purpose of using a penny in the Penny Lab experiment?

• To measure the effect of different liquids on metal

• To observe the reaction of copper with oxygen

• To test the surface tension of water

• To determine the weight of a penny

In the Penny Lab, what role does soap play in the experiment?

• It acts as a control variable

• It is the independent variable

• It is the dependent variable

• It acts as a surfactant

Why is it important to use multiple trials in the Penny Lab?

• To ensure accuracy and reliability of results

• To save time during the experiment

• To use up all the materials

• To make the experiment more complex

Tags

NGSS.MS-PS2-2