Setting Up Experiments

Mr. McBob sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp.

Identify the independent variable.

• distance traveled by the ball

• height of the ramp

• mass of the ball

• weight of the ball

Tags

NGSS.MS-PS2-2

Mr. McBob sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp.

Identify the constant.

• distance traveled by the ball

• height of the ramp

• mass of the ball

• weight of the ball

Mr. McBob sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp.

Identify the dependent variable.

• height of the ramp

• distance traveled by the ball

• mass of the ball

• weight of the ball

Mr. McBob normally uses praise as a reward to train his dog. He wants to know the best way to train his dog, so he sets up an experiment to find out if there is a better way to get his dog to respond to commands.

Identify the dependent variable.

• amount of times the dog follows the command

• type of reward

• praise

• type of dog

Tags

NGSS.MS-ETS1-1

Mr. McBob normally uses praise as a reward to train his dog. He wants to know the best way to train his dog, so he sets up an experiment to find out if there is a better way to get his dog to respond to commands.

What is his control group?

• type of reward

• trials done with new rewards

• trials done with praise

• the leash that he uses

Mr. McBob wanted to see how different types of music affected students' pulse rates. He played different types of music: heavy metal, rap, R&B, alternative, pop, country, and classical music.

Identify the dependent variable.

• Mr. McBob

• pulse rate

• high pulse rate

• classical music resulted in the highest pulse rate

Mr. McBob wanted to see how different types of music affected students' pulse rates. He played different types of music: heavy metal, rap, R&B, alternative, pop, country, and classical music.

What constant should be considered when doing this experiment?

• using a different student for each music type

• types of music

• amount of time the music was played

• use all dead people

Tiffany was investigating how fast it took Hayden to react to different sounds.

Identify the independent variable.

• Hayden

• how fast Hayden reacted

• different sounds

• how much time it took Hayden to react

Nick wanted to see how high an ice cube would float in different temperatures of water.

Identify the dependent variable.

• amount of water

• temperature the ice cube was at its' highest height

• temperature of water

• height of ice cube

Mario studied how far room temperature water would spurt out of a platic milk carton when 3mm holes were punched at different heights from the bottom of the container.

Identify a constant.

• ice water from Iceland

• different heights of holes in container

• 3 mm holes

• distance water traveled out of carton