Chandra - Exploring the Invisible Universe
Grade: 2 - 12 | Learn about the Chandra X-Ray Observatory that was placed far away from Earth's atmosphere to capture images of the x-rays emissions from very hot and violent regions of the Universe. Scientists use those images to learn about our universe.
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Space Exploration  
Science Games & Activities :
GradesQuiz Games    (with special printable formats for classroom use)
5th - 12thIdentify the Space Pioneers  

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