Enjoy The Magic Of Discovery With The Nat Geo Mega Science Series Earth Science Kit .Over 15 Experiment Activities Include Dueling Water Tornadoes, Building An Erupting Volcano, Growing A Crystal, Two Geologic Dig Kits, And More .A Detailed Learning Guide Teaches The Science At Work In The Experiments, Allowing Your Child To Develop A Deep, Lasting Appreciation For A Variety Of Earth Sciences .Clear, Easy-To-Follow Instructions Build Young Scientists' Confidence As They Experiment, Allowing Them To Focus On The Joy Of Exploration And Discovery .