What are all the things that are kept the same in an experiment?

• Experimental Groups

• Dependent Variables

• Controlled Variables

• Independent Variables

What is the affect of salt water on the the height of blades of grass?

What is the independent variable in the above question?

• salt water

• height

• average

• affect

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Students used various temperatures of water to see which one dissolved candy faster. 
What was the Independent Variable?

• Amount of Candy
• Amount of Water
• Temperature of Water
• Time for Candy to Dissolve

Tags

NGSS.MS-PS3-4

In this graph, what is the dependent variable? 

• Walla Walla Island
• Time
• Number of Deer

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

In this graph, what is the independent variable? 

• Population
• Day
• Species 5

Tags

NGSS.MS-LS2-1

How many variables should you change in an experiment?

• none
• 1
• 2 or more
• depends on the type of experiment

Tags

NGSS.MS-PS2-2

Jeff is 6 feet 2 inches is a ___________ assesment

• Qualitative
• Quantitative

The cake has a sweet smell is a _______ assessment. 

• Qualitative
• Quantitative

If I water the plant more often, then it will grow taller.  Name the dependent variable.

• The amount of water.
• The amount of soil.
• The height of the plant.
• The amount of water.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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.

• Jars with insulation

• Control Group

• How much water

• Controlled Variable

• Temperature of water.

• Independent Variable

• Type of insulation

• Dependent Variable

• Jar with no insulation.

• Experimental Group

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4