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Saguaro National Park receives about 10 inches of rain a year, but has some of the highest biodiversity in North American. Learn how plants and animals are adapted to a hot and dry environment.
Science
Pre-K, Kindergarten, 1st Grade, 2nd Grade, 3rd Grade
Learn about the characteristics of spring with The Cat in the Hat!
Check out these free Cyberchase games about money.
Learn about the space shuttle that took astronauts to space for the first repair of the Hubble Space Telescope.
