Year 7 Science: Independent and Dependent Variables

In a science experiment, what is an independent variable?

• The thing that you change

• The thing that you measure

• The thing that you keep the same

In a science experiment, what is the dependent variable?

• The thing that you change

• The thing that you measure

• The thing that you keep the same

In the scientific question "Does the amount of fertiliser affect the height that a bean plant grows?"

What is the independent variable?

• Amount of fertiliser

• Height of the bean plant

• Amount of soil used

• How often the plant is watered

Tags

NGSS.MS-LS2-1

In the scientific question "Does the amount of fertiliser affect the height that a bean plant grows?"

What is the dependent variable?

• Amount of fertiliser

• Height of the bean plant

• Amount of soil used

• How often the plant is watered

Make a prediction by finishing the sentence.

If more fertiliser is added to the bean plant the plant will.....

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

In the scientific question "If salt is added to water, will the water boil at a different temperature?"

What is the independent variable?

• Amount of salt added

• Whether salt is added or not

• Temperature the water boils at

• The amount of water mixed with the salt

In the scientific question "If salt is added to water, will the water boil at a different temperature?"

What is the dependent variable?

• Amount of salt added

• Whether salt is added or not

• Temperature the water boils at

• The amount of water mixed with the salt

Make a prediction by filling in the blank.

If salt is added to water the water will boil at a ________ temperature than if no salt was added.

Tags

NGSS.MS-PS1-4

In the scientific question "Does the colour of light used on plants affect how well they grow? "

What is the independent variable?

• How well plants grow

• Colour of light

• Type of plant that is used

• How often the plants are watered

Tags

NGSS.MS-LS1-5

In the scientific question "Does the colour of light used on plants affect how well they grow? "

What is the dependent variable?

• How well plants grow

• Colour of light

• Type of plant that is used

• How often the plants are watered

Tags

NGSS.MS-LS1-5