Working like a scientist

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

• dependent ( responding) variable

• independent (manipulated) variable

• data

• controlled variable

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

• quantitative
• qualitative

Tags

NGSS.HS-ESS2-6

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

• qualitative
• quantitative

Tags

NGSS.MS-PS4-3

In a controlled experiment, how many independent variables can be changed at a time?

• one

• none

• two or more

• however many make sense.

Which statement is an inference about this picture?

• The van is tan.

• The van ran into KFC.

• The driver was hungry.

• The awnings are red and white.

Measuring the number of times a person breathes after exercise involves ____ data.

• quantitative

• qualitative

• subjective

• inference

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 (responding) variable.

• height of the ramp

• distance traveled by the ball

• mass of the ball

• weight of the ball

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

• distance traveled by the ball

• height of the ramp

• mass of the ball

• weight of the ball

Tags

NGSS.MS-PS2-2

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent (responding) variable is the _____.

• Diameter of the ball

• Force acting on the ball

• Height that the ball bounces

• Height from which the ball is dropped

Tags

NGSS.MS-PS3-5