1) What type of fossils found in the dessert suggest the area used to be covered in ocean? a) Lizard b) Shark teeth c) Leaves d) Bird bones 2) What is physical evidence do we find of past life? a) Fossils b) Books c) Time machine 3) All fossils come from dinosaurs a) True b) False 4) What is a rock layer full of fossils called? a) treasure trove b) Fossil grave c) Bone bed 5) Scientist use radiocarbon dating to.. a) Tell how old a rock layer is b) Tell what a rock is made of c) Measure the depth of a rock layer d) To identify what animal a fossil comes from 6) What formed the grand canyon? a) A glacier b) A river c) dinosaurs d) humans 7) Scientists believe large portions of North America were once covered in oceans. a) True b) False 8) Which rock layer is the oldest? a) A b) B c) C d) D 9) Which rock layer is the youngest? a) A b) B c) C d) D 10) Which rock layer is younger than layer B, but older than layer D a) A b) C 11) What is the largest type of shark to every live? a) Tiger Shark b) Great White Shark c) Megalodon d) Hammerhead Shark 12) Rock layers found above a bone bed are ___________ than the bone bed. a) younger b) older 13) Rock layers found below a bone bed are ___________ than the bone bed. a) younger b) older 14) Fossil evidence suggests the earth has changed a lot over time. a) True b) False

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