Science investigation

The time it takes to run a mile depends on the persons running speed. Name a controlled variable.

• The persons running speed

• Same track, same stop watch used, same people performing the experiment.

• Same running speed and same track

• The time it takes to run a mile

The height of the bean plant depends on how much water they receive. What is the dependent variable? 

• Same amount of sunlight
• Same soil and water
• How much water they received
• The height of the bean plant 

Students watched a cartoon either alone or with others then rated how funny they thought the cartoon to be. What is the independent variable? 

• How funny the cartoon was 
• The name of the cartoon 
• Watching the cartoon alone or with others
• Making sure that the participants watch the same amount of cartoon. 

Why is it important to perform multiple trials during an experiment?

• It makes sure your results are more accurate

• It is not important to have multiple trials

• It allows you to keep track of your materials

Variables that are kept the same throughout an experiment.

• Theory

• Independent variables

• Dependent variables

• Controlled variables

The one and only factor that will change in an experiment. The person doing the experiment changes this.

• Dependent Variable

• Independent Variable

• Controlled variable

An experiment is performed.

Which variable is changed or manipulated by the person doing the experiment.

• Independent variable

• Dependent variable

• Experimental variable

• Controlled variable

An experiment is performed.

Which variable is the measured value, or the output of the experiment?

• Independent variable

• Dependent variable

• Experimental variable

• Controlled variable

What is a prediction about what will happen and why? This comes before the experiment.

• Hypothesis

• Theory

• Investigation

• Dependent variable

Ms. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?

• Distance traveled by the ball
• Height of the ramp
• Mass of the ball
• Where the experiment took place.

Tags

CCSS.6.EE.C.9