| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.47 |
| Score | 0% | 69% |
Which of the following states of matter exists at the highest temperature?
solid |
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liquid |
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gas |
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none of these |
Solids exist at a lower temperature than liquids which exist at a lower temperature than gases.
Generally, an atom has __________ negative electrons orbiting the nucleus as it does positive protons inside.
fewer |
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equal numbers of |
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double the number of |
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more |
An electron is a subatomic particle that orbits the nucleus of an atom. It carries a negative electric charge. Generally, an atom has the same number of negative electrons orbiting the nucleus as it does positive protons inside.
The four planets closest to the Sun are called terrestrial. What does terrestrial mean?
the planets have water |
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the planets are Earth-like |
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the planets have magnetic fields |
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the planets have moons |
The four planets closest to the Sun (Mercury, Venus, Earth, and Mars) are called terrestrial (Earth-like) planets because, like the Earth, they're solid with inner metal cores covered by rocky surfaces.
In the metric system, what prefix represents 10-3?
kilo |
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centi |
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mega |
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milli |
In the metric system, milli is the prefix for 10-3.
A large naturally occurring community of flora and fauna occupying a major habitat is:
a population |
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a food chain |
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a community |
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a biome |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).