1.   2.   3. Earth 4. Atmosphere … Gives us the air we breathe 5. Protects us from meteorites and harmful cosmic radiation 6. Blanket covering the Earth from heat at…

Announcements Chapter 12: Dwarf Planets and Small Solar System Bodies 1 Pluto: distant ice world that was once a planet 2 Pluto was discovered by Clyde Tombaugh in 1930 Percival…

Educator Resources in Space Sciences Space Rocks! Caitlin Nolby North Dakota NASA Space Grant Space Rocks Defined Meteoroid: Small (less than 10 meters) rock/metallic object…

Educator Resources in Space Sciences Space Rocks! Caitlin Nolby North Dakota NASA Space Grant Space Rocks Defined Meteoroid: Small (less than 10 meters) rock/metallic object…

Announcements Chapter 12: Dwarf Planets and Small Solar System Bodies 1 Pluto: distant ice world that was once a planet 2 Pluto was discovered by Clyde Tombaugh in 1930 Percival…

Impact Craters and Age Impact Craters and Age - Review Finding ages of objects Absolute ages are assessed through radioactive decay (1/2 lives) Carbon 14, half-life of 5700…