List of Words for Letter 'P'
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periodic table
a chart that lists all of the known elements and their properties
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permafrost
a layer of soil that is always frozen
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phase
a temporary state of being
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physical change
a change in which matter looks different but is still the same matter
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planet
a large sphere in space that orbits a star
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pollution
what happens when harmful materials get into the air, water, or land
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population
all the members of a single type of living thing in an ecosystem
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potential energy
energy that is stored up inside of matter
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prairie
a temperate grassland
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predator
an animal that hunts another animal for food
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predict
to state possible results of an event or experiment
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prey
an animal that is hunted by another animal for food
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prism
a special lens that can break light into many parts and colors
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property
a trait of something that can be observed and measured
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pupil
the central opening into the eye