| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.83 |
| Score | 0% | 77% |
The heart __________ blood.
oxygenates |
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deoxygenates |
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filters |
|
creates |
To provide oxygen to the body, blood flows through the heart in a path formed by the right atrium → right ventricle → lungs → left atrium → left ventricle → body. When blood enters the right side of the heart it is deoxygenated. It enters the left side of the heart oxygenated after traveling to the lungs.
The number system most used in science is the:
English system |
|
American system |
|
British system |
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metric system |
The metric system is a number system that designates one base unit for each type of measurement. For example, the base unit for length is the meter and the base unit for mass is the gram.
A subatomic particle found in the nucleus of an atom. It carries a positive electric charge. This desribes which of the following?
proton |
|
atom |
|
electron |
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neutron |
A proton is a subatomic particle found in the nucleus of an atom. It carries a positive electric charge.
212°F is how many °C?
-100 |
|
\(135 {5 \over 9}\) |
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100 |
|
0 |
The formula to convert from F° to C° is:
\(C° = {5 \over 9} (F° - 32)\)
plugging in our values gives:
\(C° = {5 \over 9} (212 - 32)\)
\(C° = {5 \over 9} (180) = {{180 \times 5} \over 9}\)
\(C° = {900 \over 9}\)
\(C° = 100\)
Which of the following is not one of the outer planets?
Uranus |
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Jupiter |
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Venus |
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Neptune |
In contrast to the solid terrestrial planets, the outer planets (Jupiter, Saturn, Uranus, and Neptune) consist of hydrogen and helium gas and water.