Cycles in the Environment (Science 7, Alberta - G7 U1 T5)

Science often has four cycles that are most commonly discussed. Match each of the chemical symbols below with the cycle that they would be associated with.

• Carbon

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• Water

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• Nitrogen

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• Phosphorus

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Tags

NGSS.MS-ESS2-4

The formation of petroleum is primarily the result of the breakdown of microorganisms. Take each of the examples below, and classify them as a microorganism or a non-micoorganism.

Groups:

(a) Microorganism

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(b) Non-microorganism

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Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Some organisms, such as humans, breathe out carbon dioxide as part of the carbon cycle. Other organisms, such as trees, breathe in carbon dioxide as part of the carbon cycle. Classify each of these as breathing in or out carbon dioxide.

Groups:

(a) Breathe in CO2

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(b) Breathe out CO2

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Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Rank the following from those with the lowest percentage of water to those with the highest percentage of water:

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Answer explanation

Cucumber ~ 96%

Watermelon ~ 92%

Earthworm ~ 80%

Chicken ~ 75%

Banana ~ 70%

Tags

NGSS.MS-LS2-3

Rank the following from those with the lowest percentage of water to those with the highest percentage of water:

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Answer explanation

Jellyfish ~ 96%

Strawberries ~ 91%

Grapes ~ 81%

Human ~ 60-70%

Camel ~ 55-60%

Tags

NGSS.MS-ESS2-4

Which of these rectangles would be best labeled as "evaporation"?

Tags

NGSS.MS-ESS2-4

Which of these rectangles would be best labeled as "runoff"?

Tags

NGSS.MS-ESS2-4

Which of these rectangles would be best labeled as "transpiration"?

Tags

NGSS.MS-ESS2-4

Which of these rectangles would be best labeled as "precipitation"?

Tags

NGSS.MS-ESS2-4

We use the pH scale to measure the acidity of liquids. Rank the following from most acidic to least acidic:

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Answer explanation

Car battery pH ~ 1.6

Vinegar pH ~ 2.8

Average acid rain pH ~ 4.5

Average rain pH ~ 6.0

Human blood pH ~ 7.4

Tags

NGSS.MS-PS1-2