| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 2.80 |
| Score | 0% | 56% |
Meteoroids, meteors and meteorites are categorized based on which of the following?
their temperature |
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their density |
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their location |
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their size |
Smaller rocks shed by asteroids and comets are called meteoroids. When these rocks reach Earth's atmosphere, they burn up in the mesosphere and become meteors. If a meteor manages to reach the Earth, it is called a meteorite.
Elements that belong to the same period in the Periodic Table of the Elements have the same number of:
electrons |
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atomic mass units |
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protons |
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electron 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.
I biome is made up of naturally occurring flora and fauna. Fauna is which of the following?
habitats |
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plants |
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minerals |
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animals |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
Secondary consumers that also eat producers are known as:
omnivores |
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scavengers |
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herbivores |
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carnivores |
Secondary consumers (carnivores) subsist mainly on primary consumers. Omnivores are secondary consumers that also eat producers. Examples are rats, fish, and chickens.
The rows of the Periodic Table of the Elements are called:
periods |
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families |
|
shells |
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groups |
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.