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- times tables
- the elements of the periodic table, mass and atomic numbers
- names and physical properties of gemstones
- types of clouds and what they hold for weather conditions
- the moon cycles
- constellations of the southern hemisphere
- constellations of the northern hemisphere
- the order of the planets in our solar system
- the moons of the planets in our solar system
- every continent, their capitals
jul 21 2011 ∞
nov 23 2011 +
nov 23 2011 +