Matter | Earth Systems | Energy and Earth's History | Evolution/Genetics | Ecosystems, Living Organisms, and Biology |
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What is a compound?
Carbon and Oxygen combine chemically to form carbon dioxide. Carbon dioxide is an example of this.
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What is freshwater mixing with salt water?
Explain why the Pamlico Sound is an estuary.
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What is conservation?
The wise use of natural resources is called this.
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What is natural selection?
Organisms best suited to their environment are most likely to survive and reproduce.
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What is plants take in carbon dioxide and release oxygen.
Explain the role of plants in the carbon cycle.
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What is a physical change?
The property of a substance changes, but its identity stays the same.
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What is upwelling?
The movement of cold, nutrient rich water from deep layers of the ocean up to the surface.
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Fossil fuels take millions of years to form, and are being used more quickly than they can be replaced.
Explain why fossil fuel supplies are limited.
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More members will have the useful markings over time.
Some rattlesnakes in a population have markings that help the snakes hide. The snakes with these markings catch more prey, live longer, and have more offspring than the other snakes. What does the theory of natural selection predict about this population?
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What is mutualism?
A bird shares an ecosystem with a rhinoceros. The bird eats insects that try to feed on rhinoceros blood. The rhino benefits by being cleaned of pest and the bird benefits by getting food.
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What is burning?
Explain what would cause a chemical change in a piece of wood.
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What is the surface or intertidal zone?
Region of the sea that is affected by changes in tides.
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What is an ice core?
To learn how Earth's atmosphere has changed over time, scientists study air bubbles in this.
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What is eon, era, period, epoch
List the geologic time scale from longest to shortest.
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What is an addiction?
A physical dependence on a substance.
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What is the law of conservation of mass?
The total mass of the reactants is equal to the total mass of the products.
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What is a healthy water source or low turbidity?
Low temperature, high dissolved oxygen, and a neutral pH are all characteristics of this.
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What is on the top?
Assuming that a rock formation undisturbed, the youngest rock layer would be here.
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What is a genetic variation?
Eye color is an example of this type of variation.
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What is a virus?
Reproduces by injecting its genetic material into a host cell.
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What is a precipitate?
Occurs when two liquids are combined and a solid forms.
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What is Sonar?
The process of sending out sound waves to be reflected back off of objects that allows scientists to determine the location and shape of underwater objects.
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What is radioactive dating?
The absolute age of rocks is found using this method.
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What is environmental variation?
A bird's beak begins to change shape due to its new location.
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What is a bacteria?
These can be either spherical, rod-shaped, or spiral shaped.
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