OUR CATEGORY FOR THE NEXT 10 CHAPTERS IS ABOUT
EARTH SCIENCE
•DYK 1: Geocentric
•DYK 2: Temperature
•DYK 3: 13th Zodiac Sign
•DYK 4: Natural Gas
•DYK 5: Halley's Comet
•DYK 6: Ringed Planets
•DYK 7: Jupiter's Moon
•DYK 8: Pluto
•DYK 9: Saturn
•DYK 10: Japan
