Investigation

Which step in the scientific method comes after writing the hypothesis?

• Test hypothesis

• Ask Questions

• Draw Conclusions

• Share Results

The part of the experiment that does not receive the independent variable, what you compare to

• control

• constant

• hypothesis

• inference

The part of the experiment that I change

• independent variable

• dependent variable

• constant

• observation

The part of the experiment that changes as a result of the independent variable, Data you collect

• independent variable

• dependent variable

• hypothesis

• problem

The part of the experiment where you decide what will happen or make a prediction, stated as if...then

• control

• title

• hypothesis

• control

The act of looking at something in order to gain information

• observation

• problem

• qualitative

• quantitative

Matt wants to test which liquid freezes first: Pepsi, milk, or apple juice.  He poured 50 mL of each into separate glasses and placed them in his freezer.  Every ten minutes, he checked his freezer and recorded his observations.  Pepsi froze first, followed by apple juice and then milk.  What is his dependent variable?

• type of liquid

• length of time until frozen

• amount of liquid

• location of freezer

Tags

NGSS.MS-PS3-4

Betty wants to test which type of phone has the longest battery life.  She is comparing iPhone 6 Plus, Samsung S5,  and a Droid.  She bought each phone new and charged them completely to 100%.  Then, she turned each phone on and timed how long until the battery ran out.  What is the independent variable in her experiment?

• brand of phone

• time until battery ran out

• time it took to charge to 100%

• outlet used for charging

Tags

NGSS.MS-ETS1-3

A bug repellent was sprayed on one arm. On the other arm, the bug repellent was not sprayed. After 2 hours, the number of bug bites are recorded. What is the independent variable?

• The type of bug repellent

• If an arm was sprayed with bug repellent or not

• The number of bug bites

The one factor that a scientist changes during an experiment. (It affects the results of the experiment).

• Controlled Variable

• Dependent Variable

• Independent Variable

Tags

NGSS.MS-PS2-2