IV DV Practice

Kailisha wanted to see how the temperature of the air affected the elasticity (stretch) of a rubber band. She put 5 rubber bands in the refrigerator for 3 hours and kept 5 rubber bands at room temperature. After 3 hours she stretched the band along a ruler until they broke. She recorded the length at which they broke.

What is the IV?

• The length at which they broke

• The rubber bands in the freezer

• The type of band, measurement tool, speed and strength the band was pulled

• The temperature of the rubber bands

• The rubber bands at room temperature

Tags

NGSS.MS-PS1-4

Kailisha wanted to see how the temperature of the air affected the elasticity (stretch) of a rubber band. She put 5 rubber bands in the refrigerator for 3 hours and kept 5 rubber bands at room temperature. After 3 hours she stretched the band along a ruler until they broke. She recorded the length at which they broke.

What is the DV?

• The length at which they broke

• The rubber bands in the freezer

• The type of band, measurement tool, speed and strength the band was pulled

• The temperature of the rubber bands

• The rubber bands at room temperature

Tags

NGSS.MS-PS3-4

Kailisha wanted to see how the temperature of the air affected the elasticity (stretch) of a rubber band. She put 5 rubber bands in the refrigerator for 3 hours and kept 5 rubber bands at room temperature. After 3 hours she stretched the band along a ruler until they broke. She recorded the length at which they broke.

What is the control group?

• The length at which they broke

• The rubber bands in the freezer

• The type of band, measurement tool, speed and strength the band was pulled

• The temperature of the rubber bands

• The rubber bands at room temperature

Kailisha wanted to see how the temperature of the air affected the elasticity (stretch) of a rubber band. She put 5 rubber bands in the refrigerator for 3 hours and kept 5 rubber bands at room temperature. After 3 hours she stretched the band along a ruler until they broke. She recorded the length at which they broke.

What are the constants?

• The length at which they broke

• The rubber bands in the freezer

• The type of band, measurement tool, speed and strength the band was pulled

• The temperature of the rubber bands

• The rubber bands at room temperature

Lenny wondered if soil with extra air in it made it easier for plant to gather nutrients and would help them grow taller. He knew worms add air to the soil. He put a 5 worms in one pot, 3 worms in a second pot, and no worms in a third. He then measured the plant growth once a week for 4 weeks.

What is the IV?

• Type of plant, type of soil, size and type of the pot, amount of sun and water

• Amount of worms in the pot

• Pot with no worms in the pot

• Height of the plant

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Lenny wondered if soil with extra air in it made it easier for plant to gather nutrients and would help them grow taller. He knew worms add air to the soil. He put a 5 worms in one pot, 3 worms in a second pot, and no worms in a third. He then measured the plant growth once a week for 4 weeks.

What is the DV?

• Type of plant, type of soil, size and type of the pot, amount of sun and water

• Amount of worms in the pot

• Pot with no worms in the pot

• Height of the plant

Tags

NGSS.MS-LS1-5

Lenny wondered if soil with extra air in it made it easier for plant to gather nutrients and would help them grow taller. He knew worms add air to the soil. He put a 5 worms in one pot, 3 worms in a second pot, and no worms in a third. He then measured the plant growth once a week for 4 weeks.

What is the control group?

• Type of plant, type of soil, size and type of the pot, amount of sun and water

• Amount of worms in the pot

• Pot with no worms in the pot

• Height of the plant

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-4

Lenny wondered if soil with extra air in it made it easier for plant to gather nutrients and would help them grow taller. He knew worms add air to the soil. He put a 5 worms in one pot, 3 worms in a second pot, and no worms in a third. He then measured the plant growth once a week for 4 weeks.

What are the constants?

• Type of plant, type of soil, size and type of the pot, amount of sun and water

• Amount of worms in the pot

• Pot with no worms in the pot

• Height of the plant

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

The variable that is manipulated (changed) by the scientist is called the ______ variable.

• Control

• Independent

• Constant

• Dependent

Tags

NGSS.MS-PS2-2

The variable that is manipulated (changed) by the scientist is called the ______ variable.

• Control

• Independent

• Constant

• Dependent