| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.56 |
| Score | 0% | 71% |
The rows of the Periodic Table of the Elements are called:
groups |
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periods |
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families |
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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.
What type of cloud is responsible for fog?
cirrus |
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cumulus |
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cumulonimbus |
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stratus |
Clouds are categorized based on their shape, size, and altitude. Stratus clouds are low-altitude clouds characterized by horizontal layering with a broad flat base. When stratus clouds occur on the ground the result is fog.
Saturated fats can __________ LDL ("bad") cholesterol while unsaturated fats can __________ it.
raise, decrease |
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stabilize, raise |
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decrease, raise |
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decrease, stabilize |
Saturated fats can raise LDL ("bad") cholesterol while unsaturated fats can decrease it.
As part of digestion, the liver produces bile which breaks down:
starches |
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sugars |
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protein |
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fat |
The liver produces bile which emulsifies (separates) fat.
Materials like metals that transfer heat efficiently are called:
conductors |
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refractors |
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reflectors |
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insulators |
Heat is always transferred from warmer to cooler environments and conduction is the simplest way this transfer can occur. It is accomplished through direct contact between materials and materials like metals that transfer heat efficiently are called conductors while those that conduct heat poorly, such as plastic, are called insulators.