000			00580nam a2200169Ia 4500
020			_a076602363x
040			_cPK-LaCSN
082			_bCAE _a500
100			_a"Yael Calhoun"
245		0	_aEarth science fair projects
260			_bEnslow Publishers _c2005 _aBerkely
300			_a128
520			_aPresents experiments that focus on understanding various aspects of the environment, including how minerals form, how water moves through the soil, and how wind erodes and deposits sediment
942			_2ddc _cBK
999			_c244802 _d244802