| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.88 |
| Score | 0% | 78% |
The heat from the Sun traveling to Earth is an example of which of the following?
conduction |
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radiation |
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electricity |
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convection |
Radiation occurs when electromagnetic waves transmit heat. An example is the heat from the Sun as it travels to Earth.
The energy posessed by a thrown baseball is an example of what kind of energy?
transitional |
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kinetic |
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gravitational |
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potential |
Kinetic energy is the energy posessed by a moving object. Potential energy is stored energy in a stationary object based on its location, position, shape, or state.
Generally, an atom has __________ negative electrons orbiting the nucleus as it does positive protons inside.
equal numbers of |
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double the number of |
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fewer |
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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.
Leafy vegetables, beans, potatoes, fruits, and whole grains are good sources of:
protein |
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unsaturated fat |
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saturated fat |
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fiber |
Fiber provides bulk to help the large intestine carry away waste. Good sources of fiber are leafy vegetables, beans, potatoes, fruits, and whole grains.
During digestion, the kidneys filter substances from the blood. Which of the following is not filtered by the kidneys?
salt |
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water |
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minerals |
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fats |
Chemical waste like excess water, minerals, and salt are filtered from the blood by the kidneys and secreted into the urine. Urine is transported from the kidneys to the bladder through ureters.