Astronomy Dictionary
Learn all about the universe on the web!
Botany Dictionary
Plants!
Butterfly Dictionary
Learn about butterflies and their amazing life cycle.
Hundreds of dinosaurs, fossils, fascinating prehistoric creatures, and paleontology terms.
Geographic Terms
Map-making, map projections, landforms and cartographic terms.
Hurricane Glossary
Learn terms used when dealing with hurricanes.
Landforms Glossary
Terms describing landforms and bodies of water.
Math Dictionary
An illustrated dictionary of basic math terms.
Rainforest Dictionary
Examine the rainforests from
River Glossary
Terms about rivers.
Rock and Mineral Dictionary
Read about rock and mineral terms.
Shark Dictionary
Explore the world of these fierce predators.
Tsunami Glossary
Terms about tsunamis and their causes.
Volcano Dictionary
An illustrated dictionary of volcano terms.
Whale Dictionary
Read amazing facts about whales and dolphins.
Hall of Astronomers
Read about important astronomers, physicists, and mathematicians who changed our view of the universe.
Dictionary of Paleontologists
Some of the major paleontologists, fossil hunters, naturalists, anatomists, and dinosaurologists of all time.
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