Scientific Method - Variables

The word "Variable" means something that

• changes

• stays the same

Tags

NGSS.MS-PS2-2

What is the factor that the scientist changes in the

beginning of an experiment to see how it

affects the dependent variable?

• Independent variable

• Dependent variable

• Constant

• Control group

Tags

NGSS.MS-PS2-2

What is the factor that changes because of the independent

variable? This is what the scientist measures during the experiment.

• Independent variable

• Dependent variable

• Constant

• Control group

Tags

NGSS.MS-PS2-2

What is a part of the experiment that does not change?

• Independent variable

• Dependent variable

• Constant

• Control group

Tags

NGSS.MS-PS2-2

What is a part of the experiment that is set up like the rest of the test groups, but it is not exposed to independent variable? Or it can be considered the “normal” group.

• Independent variable

• Dependent variable

• Constant

• Control group

Tags

NGSS.MS-PS2-5

A scientist sets up an experiment to find out if plants grow better when given a different gas than they normally need. (Plants need carbon dioxide).

What is the INDEPENDENT variable?

• Same type of plant.

• The plants that get carbon dioxide.

• The growth of the plants.

• The type of gas.

A scientist sets up an experiment to find out if plants grow better when given a different gas than they normally need. (Plants need carbon dioxide).

What is the DEPENDENT variable?

• Same type of plant.

• The plants that get carbon dioxide.

• The growth of the plants.

• The type of gas.

Tags

NGSS.MS-LS2-4

A scientist sets up an experiment to find out if plants grow better when given a different gas than they normally need. (Plants need carbon dioxide).

What should be the CONTROL GROUP?

• Same type of plant.

• The plants that get carbon dioxide.

• The growth of the plants.

• The type of gas.

Tags

NGSS.MS-LS2-1

A scientist sets up an experiment to find out if plants grow better when given a different gas than they normally need. (Plants need carbon dioxide).

What is one factor that should be kept CONSTANT?

• Same type of plant.

• The plants that get carbon dioxide.

• The growth of the plants.

• The type of gas.

How many INDEPENDENT variables should always be in an experiment?

• 1

• 2

• Lots

• It depends on the experiment.