List of Words for Letter ‘P’
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pancreas
a gland that produces digestive fluids and other helpful chemicals
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paramecium
a common animal-like protist that cannot produce its own food
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pericardium
the sac of tissue around the heart
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periodic table
a chart that shows all of the known elements and their properties
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petiole
the part of a plant that connects the leaf to the stalk
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pH scale
the scale that measures the amount of acid or base solution
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pharynx
the part of the throat that connects the mouth to the digestive tube
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phloem
the tissue in a plant that moves food down from the leaves to other parts of the plant
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photosynthesis
the process by which plants turn sunlight, water, carbon dioxide, and other nutrients from the soil into food
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phyla
the plural of the level of classification of living things below kingdom and above class
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phylum
the level of classification of living things below kingdom and above class
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pistil
the parts of a plant that produce the female sex cells
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plasma
a fluid in which other materials are suspended, as with blood cells in blood
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platelet
small cell fragments that help the body heal
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pollen
the powder-like grains in a flower that contain the male sex cells
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pollination
the process in which the male and female cells of plants come together
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pollute
to make dirty, unclean, or contaminated
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pore
a small opening in the skin
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precipitate
the solid product of a chemical reaction in a solution
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precipitation
water droplets that form in the atmosphere and fall to the ground
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product
a new substance resulting from a chemical change
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prop root
roots that grow like fingers out of the stem of a plant
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property
a trait of something that can be observed and measured
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protist
a member of the kingdom Protista, which contains mostly unicellular organisms with distinct nuclei
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proton
a particle in the space outside the nucleus of an atom that carries one unit of positive electric charge
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pulmonary
having to do with the lungs