What is the purpose of having a control in an experiment?

• To add one more variable to examine

• It allows experimenter to see if the experiment actually works.

• To allow more time in the experiment.

• All of the above

Tags

NGSS.MS-PS1-2

How many variables can you change during an experiment at a time?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS2-2

Why are correlations important in Science?

• It allows experimenter to predict what will happen based on other known facts.

• It allows experimenter to add another variable to the experiment.

• It allows experimenter to come to a definite conclusion.

• None of the above

Tags

NGSS.HS-ESS3-5

What is the name of the biggest carbon reservoir on Earth?

• Gneiss

• Shale

• Granite

• Limestone

Tags

NGSS.MS-LS1-6

Which of the following is NOT part of the nitrogen cycle?

• Nitrogen fixing bacteria

• Nitrates

• Ammonia

• Nitrogen trapped inside rocks

How much nitrogen is found in the atmosphere on Earth?

• 18 percent

• 21 percent

• 50 percent

• 78 percent

True or False: Consumers get their energy directly from the sun.

• True

• False

Tags

NGSS.MS-LS2-3

Which of the following organisms are responsible for converting nitrogen gas into other usable organic compounds?

• Fungi

• Plants

• Nitrogen-fixing bacteria

• Animals

Where do producers get their carbon from?

• Soil

• Water

• Air

• Animals

Tags

NGSS.MS-LS1-6

Where are fossil fuels located?

• On Earth's surface

• Trapped beneath Earth's surface

• Under the Ocean floors

• All of the above

Tags

NGSS.MS-ESS3-1