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App finds breast cancer – level 2
16-08-2024 15:00
Two college graduates recently developed a device which could...Dinosaur footprints – level 2
09-08-2024 15:00
People discovered dinosaur footprints in the Dinosaur Valley State...Reasons for yellow US school buses – level 2
06-08-2024 15:00
Over time, most school buses in the US became...Saving the Panama Canal – level 2
10-07-2024 15:00
In 1913, workers flooded Lake Gatun to make the...A boy beats Tetris – level 3
08-07-2024 15:00
Willis Gibson, a 13-year-old in Oklahoma, the United States,...How old is the Moon? – level 2
27-06-2024 15:00
In 1972, during the Apollo 17 mission, astronauts gathered...