Variables, Data, Observations and Inferences

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

• dependent variable
• independent variable
• data
• control group

Tags

CCSS.6.EE.A.2C

There are two types of data. Which type of data involves numbers that are obtained by counting or measuring?

• quantitative
• qualitative

Tags

NGSS.MS-PS3-1

There are two types of data. Which type of data involves descriptions/photographs/illustrations that cannot be counted or measured?

• qualitative
• quantitative

Which statement is an inference about this picture?

• The van is tan.
• The  van ran into KFC. 
• The driver was hungry. 
• Red and white are part of the KFC building. 

Jane Goodall video recorded chimpanzees hunting pigs, this type of data is called ___

• qualitative
• quantitative
• field study
• observation

Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp.  Identify the dependent variable.

• height of the ramp
•  distance traveled by the ball
• mass of the ball
• weight of the ball

The independent variable is the ONE thing you _____.

• change on purpose
• control or keep constant
• measure

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect 

• independent variable
• dependent variable
• control variable

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. What variables should be kept constant/controlled? 

• type of plant, flower pot,  soil, and amount of sunlight
• water, apple juice, milk
• only the amount of sunlight
• type of plant only

_{The weather is cold.}

• inference
• observation