| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.30 |
| Score | 0% | 66% |
Water freezing or boiling is an example of which of the following?
cooling |
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sublimation |
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heating |
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phase transition |
A substance undergoes a phase transition when it moves from one state of matter to another, for example, when water freezes or boils.
Which of the following is not part of the carbon cycle?
respiration |
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precipitation |
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photosynthesis |
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decomposition |
The carbon cycle represents the ciruit of carbon through Earth's ecosystem. Carbon dioxide (CO2) in the atmosphere is absorbed by plants through photosynthesis. Plants then die and release carbon back into the atmosphere during decomposition or are eaten by animals who breathe (respiration) the carbon into the atmosphere they exhale and produce waste which also releases carbon as it decays.
As part of the carbon cycle, plants release carbon into the atmosphere through which process?
evaporation |
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photosynthesis |
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decomposition |
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sedimentation |
The carbon cycle represents the ciruit of carbon through Earth's ecosystem. Carbon dioxide (CO2) in the atmosphere is absorbed by plants through photosynthesis. Plants then die and release carbon back into the atmosphere during decomposition or are eaten by animals who breathe (respiration) the carbon into the atmosphere they exhale and produce waste which also releases carbon as it decays.
The rows of the Periodic Table of the Elements are called:
families |
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groups |
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periods |
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shells |
The rows of the Periodic Table are called periods and contain elements that have the same number of electron shells ordered from lower to higher atomic number.
Which of the following is not a base unit in the metric system?
degree Fahrenheit |
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gram |
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meter |
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liter |
The Fahrenheit scale is used for measuring temperature in the British system. The metric system uses the Celsius scale.