1.2.6-Scientific Method

A testable prediction about a scientific investigation

• Question
• Observation
• Hypothesis
• Experiment

"I saw a Cheetah!!!" ... is an example of a

• hypothesis
• conclusion
• theory
• observation

A control is a group of subjects that

• does not receive the independent variable
• does not receive the dependent variable
• run the experiment
• increase the effect of the outside variables on the experiment

How many manipulated variables does an experiment have?

• 0
• 1
• between 1 and 5
• as many as needed

Tags

NGSS.HS-PS1-5

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• heart rate
• type of exercise
• amount of exercise
• time of day exercise occurs

Tags

NGSS.HS-ETS1-2

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• The type of plant
• The amount of sunlight
• The type of music
• The type of liquid

Tags

NGSS.MS-LS1-5

Batman decides to conduct an experiment where he tests how far Batarangs of different shapes and sizes can travel. Why would Alfred consider this a bad experiment?

• It has more than one independent variable
• Batarangs don't travel that far
• You never talk back to batman
• Batarangs are too old school

This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 

• experimental group
• control group
• data
• variables

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

Which of these statements is qualitative?

• Max's high score is 132,550.
• My piano teacher's cat weights 8.5 lbs.
• The policeman will give you a ticket if you drive faster than 50 mph down this road.  
• Carly is wearing her red dress.