Scientific Variables - 8X

The independent variable is

• the one factor the scientist chooses to change

• the factor being tested to see its effect

• the factor that causes the change in the results obtained

• all 3 options

Tags

NGSS.MS-PS2-2

Identify the independent variable:

James gives 5 plants different amounts of water to see if this affects how tall the plants grow.

• the 5 different plants

• the volume of water given to each plant

• the final height of each plant

• the type of water used

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Identify the dependent variable:

James gives 5 plants different amounts of water to see if this affects how tall the plants grow.

• the 5 different plants

• the volume of water given to each plant

• the final height of each plant

• the type of water used

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

In the experiment where Sarah tests different fertilizers on plant growth, which of the following is the independent variable?

• the type of fertilizer used

• the growth rate of the plants

• the amount of sunlight the plants receive

• the size of the pots

Tags

NGSS.MS-ETS1-1

Identify the independent variable:

Kamogelo determines what happens to the brightness of lightbulbs when adding more cells to a series circuit.

• circuit type

• type of lightbulb

• number of cells

• brightness of lightbulbs

Identify the dependent variable:

Kamogelo determines what happens to the brightness of lightbulbs when adding more cells to a series circuit.

• circuit type

• type of lightbulb

• number of cells

• brightness of lightbulbs

Identify the fixed variables:

Kamogelo determines what happens to the brightness of lightbulbs when adding more cells to a series circuit.

• circuit type

• type of lightbulb

• number of cells

• brightness of lightbulbs

Identify the independent variable:

Sethu observes that the amount of force applied to a soccer ball determines the distance that he can kick the ball.

• who is kicking the ball

• the size of the ball

• the force applied to the ball

• the distance the ball is kicked

Tags

NGSS.MS-PS2-2

Identify the dependent variable:

Ethan observes that the amount of force applied to a soccer ball determines the distance that he can kick the ball.

• who is kicking the ball

• the size of the ball

• the force applied to the ball

• the distance the ball is kicked

Tags

NGSS.MS-PS2-2

In an experiment where Maria tests the effect of different temperatures on the solubility of salt, which of the following is the independent variable?

• the temperature of the water

• the amount of salt dissolved

• the time taken for the salt to dissolve

• the type of salt used

Tags

NGSS.MS-PS1-4