Scientific Investigation

What is the independent variable?

• The thing "I" change on purpose

• The data collected/ the thing that happens

• The comparison group

• All the things that are kept the same

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

What is the dependent variable?

• The thing "I" change on purpose

• The data collected/ the thing that happens

• The comparison group

• All the things that are kept the same

Tags

NGSS.MS-PS1-2

NGSS.MS-PS3-4

What is the control?

• The thing "I" change on purpose

• The data collected/ the thing that happens

• The comparison group

• All the things that are kept the same

What are the constants?

• The thing "I" change on purpose

• The data collected/ the thing that happens

• The comparison group

• All the things that are kept the same

Tags

NGSS.MS-PS2-2

Which of the following would be an example of an independent variable? Check all that apply

• Adding 10, 20, and 30 mL of fertilizer to plant groups

• Testing 3 brands of batteries

• Measuring how tall a plant gets

• Adding the same amount of soil and water to each plant

• Dropping a ball from 5, 10, and 15 cm

Tags

NGSS.MS-PS2-2

Which of the following would be an example of a dependent variable? Check all that apply

• Bouncing a ball on carpet and wood floors

• Measuring how tall a ball bounces

• Measuring how tall a plant grows

• Growing 3 different species of plants

• Measuring how long a battery lasts

Which of the following would be an example of a control? Check all that apply

• Adding no fertilizer to a plant

• Using the same brand of battery each time

• Adding a normal amount of water to a plant

• Bouncing 3 different brands of balls

• Giving a normal 10 hours of light to a plant

Which of the following would be an example of a constant? Check all that apply

• Giving a normal 10 hours of light to a plant

• Growing 3 different species of plants

• Giving each plant 20 mL of water a day

• Sliding each toy car down the same plastic ramp

• Heating each metal cube on the same burner for the same 30 seconds

What is the independent variable in this graph?

• Time

• Velocity

• Distance

• m/s

Tags

NGSS.MS-PS3-1

What is the dependent variable in this graph?

• Time

• Velocity

• Distance

• m/s

Tags

NGSS.MS-PS3-1