Enchanted Learning provides an easy-to-understand explanation of projections. Site also provides a graph of related terms such as conic projection, cylindrical projection, Mercator projection, and more.

This is a thorough site which contains a glossary of plant/animal cell anatomy terms. Diagrams of both cells are included along with worksheets to label.

Discover the hidden treasures in the different habitats on the earth! The earth is filled with many biomes. Examples of different biomes are listed and include hyperlinks to additional information such as the animals found there.

Delve into this wonderfully illustrated and comprehensive picture dictionary. Research up to 1,905 illustrated entries. Each word is used in a meaningful sentence.

Here is a great resource offering many free printouts to use with your classes. Worksheets covering musical instruments, music theory and more are available. All of the worksheets have printable answer sheets as well.