IA3

The Earth's axis is tilted 23.5 degrees from the plane of its orbit around the sun. But this tilt changes. During a cycle that averages about 40,000 years, the tilt of the axis varies between 22.1 and 24.5 degrees. Less tilt means less severe seasons: cooler summers and milder winters. The cool summers are thought to allow snow and ice to last from year-to-year in high latitudes, eventually building up into massive ice sheets. How would this seasonal change influence the overall climate on Earth?

• The occurrence of milder seasons corresponds to the ice ages on Earth.

• Cooler summer and milder winters would result in an overall warming trend on the planet.

• An Earth covered with more snow and ice reflects more solar radiation into space, causing additional cooling.

• With less severe seasons there would be less chance of severe weather and storms. Less precipitation would result in additional warming.

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NGSS.HS-ESS2-2

NGSS.HS-ESS2-4

The picture shown is a food chain found in the Grand Basin desert in Nevada. Suppose a company that makes snakeskin wallets sets up shop in the area and kills all of the Mojave rattlesnakes. What would you LEAST expect to happen next?

• Kangaroo rat populations show an increase.

• Desert sagebrush plant populations grow uncontrollably.

• Prickly pear cacti are grazed more heavily than previously.

• Cougars eat more jackrabbits in their diet than they normally do.

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NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

As levels of carbon dioxide increase in the atmosphere, we could expect oceanic carbon dioxide levels to _____ and oceanic pH to _____ .

• increase; increase

• decrease; increase

• increase; decrease

• increase; not alter

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NGSS.HS-ESS2-6

The EPA presented information concerning atmospheric greenhouse gases. In 2014, they estimated that there were 6,870 Million Metric Tons of CO₂ in Earth's atmosphere. Based on this information, how will previous Antarctic temperature data, as seen in this model, change, if at all?

• The Antarctic temperature should drop below 0C.

• Antarctic's temperature will rise well above 0C.

• The temperature in the Antarctic will slowly rise over time.

• Antarctic's temperature will continue to fluctuate, above and below 0C.

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NGSS.MS-ESS3-4

NGSS.MS-ESS3-5

List the steps of the scientific method

d

e

f

c

b

a

Ask a question

Analyze results

Draw conclusions

Conduct experiment

Form a hypothesis

Communicate results

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NGSS.MS-PS2-2

NGSS.MS-PS3-4

Which letter represents amplitude? (a)  

• A

• B

• C

• D

• E

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NGSS.MS-PS4-1

Energy resources are either nonrenewable, such as fossil fuels, or renewable, such as combustion of wood. Take a look at the pie charts. Scientists predict a steady increase in the the use of renewable energy resources, especially of wind energy. It is predicted that by the end of 2014, the use of wind energy will increase to 17% of the renewable energy resources. If that increase occurs and the total amount of BTU's remains constant, what else should also happen?

• All energy use will increase.

• The total amount of energy use will decrease.

• The nonrenewable piece of the pie must decrease.

• The amount of renewable and nonrenewable energy use will increase.

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NGSS.MS-ESS3-4

As the human population continues to grow, sustainability measures must be put into place. Smart growth is a theoretical practice that would allow development to continue, but in a purposeful and sustainable manner. Which of the options shown above would promote smart growth?

• I only

• II only

• I and II only

• I, II, and III

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NGSS.MS-ESS3-4

NGSS.MS-ETS1-1

NGSS.MS-ETS1-4

NGSS.MS-LS2-5

What does this picture tell you about the line?

• The person is moving slowly

• The person is getting closer to his destination

• The person is stationary (Not Moving)

The flatter/lower the slope, the _______ the object is traveling

• Faster

• Slower

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NGSS.MS-PS3-1