Practical Science Skills

What is the independent variable

• Anything that can change

• The thing you change

• The thing you measure at the end

• The thing you keep the same

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

What is the dependent variable

• Anything that can change

• The thing you change

• The thing you measure at the end

• The thing you keep the same

Tags

NGSS.MS-PS2-2

What is a control variable

• Anything that can change

• The thing you change

• The thing you measure at the end

• The thing you keep the same

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-5

A prediction is...

• ... just a lucky guess

• ... what you think will happen and why

• ... an estimate

What is a variable

• Anything that can change

• The thing you change

• The thing you measure at the end

• The thing you keep the same

Tags

NGSS.MS-PS3-4

A group of pupils wanted to find out if caffeine increases your reaction speed. What is the dependent variable?

• amount of caffeine

• reaction speed

• time between drinking and measuring

Tags

NGSS.MS-PS2-2

A group of pupils wanted to find out if caffeine increases your reaction speed. What is the independent variable?

• amount of caffiene

• reaction speed

• time between drinking and measuring

Tags

NGSS.HS-PS1-5

A group of pupils wanted to find out if caffeine increases your reaction speed. What is the control variable?

• amount of caffiene

• reaction speed

• time between drinking and measuring

A group of pupils jumped out of their science classroom window and timed how long it took for them to hit the floor when deploying different parachutes. What is the independent variable?

• Size of parachute
• Time taken to hit the ground
• Height above ground

A group of pupils jumped out of their science classroom window and timed how long it took for them to hit the floor when deploying different parachutes. What is the dependent variable?

• Size of parachute
• Time taken to hit the ground
• Height above ground

Tags

NGSS.MS-ETS1-2