Through the Eyes of Scientists: The Big Dig, The Grand Canyon
	Use images like a scientist to investigate one of Earths seven natural wonders, the spectacular Grand Canyon in Arizona, and the grandest canyon of all, Valles Marineris, on Mars. Students will meet an inspirational NASA Jet Propulsion Laboratory geologist, Dr. Robert Anderson.
	This activity can also be found in: Quilt: Science Grades: K-4: E4 E3 I5 G5 E1