Sedimentary Rock Characteristics Using Hand Samples
11:16
Metamorphic Rock Characteristics Using Hand Samples
28:01
Rock Identification with Willsey: Intro to Sedimentary Rocks!
28:20
Rock Identification with Willsey: Intro to Igneous Rocks!
19:17
Rock and Mineral Identification
20:37
O carro mais rápido do mundo VS um guepardo!
29:14
Geology 101 with Willsey, Episode #15: Sedimentary Rocks
11:25
Part 1: How To Determine Winter In New York State (And The Sun's Path)
26:12