| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.53 |
| Score | 0% | 71% |
Convert 0C° to F°.
-32 |
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0 |
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32 |
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16 |
To convert from C° to F° use:
\(F° = {9 \over 5}C° + 32\)
\(F° = {9 \over 5}(0) + 32\)
\(F° = 0 + 32 = 32\)
A compound is a substance containing two or more different chemical elements bound together by what kind of bond?
chemical |
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covalent |
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ionic |
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molecular |
A compound is a substance containing two or more different chemical elements bound together by a chemical bond. In covalent compounds, electrons are shared between atoms. In ionic compounds, one atom borrows an electron from another atom resulting in two ions (electrically charged atoms) of opposite polarities that then become bonded electrostatically.
A large naturally occurring community of flora and fauna occupying a major habitat is:
a population |
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a biome |
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a food chain |
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a community |
A biome is a large naturally occurring community of flora (plants) and fauna (animals) occupying a major habitat (home or environment).
Which of the following is the smallest component of an element that still retains the properties of the element?
molecule |
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atom |
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element |
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neutron |
An atom is the smallest component of an element that still retains the properties of the element.
Which of blood component carries oxygen?
white blood cells |
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platelets |
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plasma |
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red blood cells |
Blood is created in bone marrow and is made up of cells suspended in liquid plasma. Red blood cells carry oxygen, white blood cells fight infection, and platelets are cell fragments that allow blood to clot.