| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.19 |
| Score | 0% | 64% |
Which of the following is not a method of heat transfer?
conduction |
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radiation |
|
reflection |
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convection |
Heat is always transferred from warmer to cooler environments through conduction, convection, or radiation.
In the metric system, what prefix represents 10-3?
centi |
|
kilo |
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mega |
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milli |
In the metric system, milli is the prefix for 10-3.
The four planets closest to the Sun are called terrestrial. What does terrestrial mean?
the planets are Earth-like |
|
the planets have magnetic fields |
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the planets have moons |
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the planets have water |
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.
Which of the following is the smallest component of an element that still retains the properties of the element?
neutron |
|
atom |
|
element |
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molecule |
An atom is the smallest component of an element that still retains the properties of the element.
Neurons are part of the __________ nervous system.
central |
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peripheral |
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somatic |
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autonomic |
The nervous system consists of the brain and spinal cord (central nervous system) and the peripheral nervous system which is the network of nerve cells (neurons) that collect and distribute signals from the central nervous system throughout the body.