Experimental Design

The variable the is changed on purpose is..

• Constant

• Control

• Independent Variable

• Dependent Variable

What is the DEPENDENT variable (effect) in this experiment?

• eating breakfast or not

• the grade you got on the test

• what time you get up in the morning

• what you eat for breakfast

What is the INDEPENDENT variable (cause)in this experiment?
"Which type of metal, copper or aluminum, conducts heat faster?" 

• size of metal

• types of metal

• time it takes to heat up

• shape of the metal

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

What is the DEPENDENT variable (effect) in this experiment?
"Do tall people jump further than short people?"

• height of the person

• weight of the person

• how fast the person runs

• how far the person jumps

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

In an experiment, a group on which a test is performed is a(n) ? group.

• theoretical

• control

• hypothetical

• experimental

Tags

NGSS.MS-PS1-2

Match the following parts of the experiment: Esther became interested in insulation while her parent’s new house was being built. She decided to determine which insulation transferred the least heat. She filled each of 5 jars half-full with water. She sealed each jar with a plastic lid.Then she wrapped 4 of the jars with a different kind of insulation, leaving one jar without insulation. She put the jars outside in the direct sunlight. Later, she measured the temperature of the water in each jar.

• Temperature of water.

• Dependent Variable

• Jar with no insulation.

• Experimental Group

• How much water

• Control Group

• Type of insulation

• Controlled Variable

• Jars with insulation

• Independent Variable

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Match the following descriptions with the correct scientific terms:

• Conditions that stay the same

• Dependent Variable

• The variable that is changed on purpose

• Hypothesis

• An "If .... then prediction statement

• Control

• Represents the normal conditions

• Constants

• The variable that we measure

• Independent Variable

Tags

NGSS.MS-PS2-2

A cow is given a growth hormone and then compared to another cow that was not given a growth hormone. Both cows were weighed after 2 years. Identify the control.

• The cow given the growth hormone.

• The cow NOT given the growth hormone.

• The cow that weighs the most.

• Both cows

Tags

NGSS.MS-LS1-5

Match the following parts of the experiment: Sophia became interested in insulation while her parent’s new house was being built. She decided to determine which insulation transferred the least amount of heat. She filled each of 5 jars half-full with water. She sealed each jar with a plastic lid. Then she wrapped 4 of the jars with a different kind of insulation, leaving one jar without insulation. She put the jars outside in the direct sunlight. Later, she measured the temperature of the water in each jar.

• Jars with insulation

• Experimental Group

• Type of insulation

• Dependent Variable

• Temperature of water

• Constant

• How much water

• Control Group

• Jar with no insulation.

• Independent Variable

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

In a well designed experiment, you should change how many variables?

• only one

• no more than two

• none at all

• as many as are needed

Tags

NGSS.MS-PS1-2