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Grade 3

758 records found. Displaying 553 - 564.

History

Roanoke: The Lost Colony

The word Croatoan carved onto a post and the letters “CRO” scratched onto a tree. What do these two clues reveal about Roanoke’s missing English colonists? Interested students can sort… More →

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Science and Math

Robonauts

Robonauts have been built to be substitutes for astronauts. They are made to look and move much like humans so they can take over time-consuming or dangerous space work. This high-interest… More →

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Science and Math

Rockets

Twenty-five times faster than the speed of sound, rockets are high-speed space delivery machines. Every week, at least one rocket launches into space from somewhere in the world! This title… More →

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Science and Math

Space Shuttles

Columbia, Challenger, Discovery, Atlantis, and Endeavor. Though space machines, NASA’s shuttles were all named after famous ships. This low-level title fuels reading interest for the most… More →

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Science and Math

Factory Robots

General Motors brought the first factory robot to life in 1961. The 4,000-pound assembly-line robot was named Unimate. It proved it could build cars twice as fast as humans could! In this… More →

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Science and Math

Flying Robots

The MQ-1 Predator drone served the U.S. military well for over two decades. The flying robot’s early missions were surveillance and reconnaissance. But in time, the drone became armed with… More →

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