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Learn about what happened when the Exxon Valdez oil tanker spilled tons of oil in Alaska in 1989 and how people cleaned it up.

Read and find out about spiders in this colorfully illustrated nonfiction picture book.In this book, featuring remarkably realistic artwork by S.D. Schindler, you will learn about …

Germs are all around us, but they're too small to see. Many germs are harmless, but two kinds, viruses and bacteria, can make you sick! How? Read and find out! This classic Level 2 …