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Popular Music Glossary

acid rockRock music with a repetitive beat and lyrics that suggest psychedelic experiences.alternativeGuitar-based rock with desultory male vocalists or chirpy female vocalists. It grew in response…

Fossils

Fossils are the remains or imprints of prehistoric plants or animals. They are found in sedimentary rock (rock formed from sand and mud), coal, tar, volcanic ash, fossilized tree sap or frozen in…

paleomagnetism

(Encyclopedia) paleomagnetism, study of the intensity and orientation of the earth's magnetic field as preserved in the magnetic orientation of certain minerals found in rocks formed throughout…

Q&A about the Body

Why we sneeze, snore, yawn, burp, bruise, and other fascinating medical questions Why do we sneeze? What happens when my foot falls asleep? Why does my nose run? Why do we shiver…

Grammar Song: What Is an Adjective?

An adjective is a part of speech that modifies or describes a noun. Review common adjectives, and help kids remember what an adjective is by singing along to this fun grammar song.

Space Exploration

Encyclopedia: Space Mars Video and Educational Activities The Universe Constellations and Stars The Solar System Space Exploration NASA Turns 50 Space Shuttle Timeline New Planetary System…

crowberry

(Encyclopedia) crowberry, evergreen alpine and arctic shrub of the genus Empetrum (or, sometimes, other related species), bearing black, red, or purple berrylike fruits. Some are cultivated in rock…

oolite

(Encyclopedia) ooliteooliteōˈəlīt, ōˈō– [key], rock composed of small concretions, usually of calcium carbonate, containing a nucleus and clearly defined concentric shells. In the British Isles…

Rhode Island Red chicken

(Encyclopedia) Rhode Island Red chicken, American breed of poultry, no longer raised commercially, but still maintained for use in breeding programs. See Red Rock chicken.