Geologic Time Scale

The layers in sedimentary rock are also called

• strata
• fossils
• eras
• epochs

Tags

NGSS.MS-ESS1-4

The largest division of the geologic time scale is the

• eon
• era
• epoch
• period

The Mesozoic Era was the Age of Reptiles, and the current Cenozoic Era is the Age of

• Birds
• Ice
• Mammals
• Humans

The _________ was an era dominated by the dinosaurs

• Precambrian
• Paleozoic
• Mesozoic
• Cenozoic

The boundaries between _______ seem to coincide with major changes in the life forms present on Earth.

• Precambrian
• Systems
• Eras 
• Epochs

Tags

NGSS.MS-LS4-1

Radiometric age is often referred to as __________ age.

• total
• absolute
• historic
• geological

Tags

NGSS.HS-ESS1-6

Fossils are most common in which rock types?

• sedimentary
• igneous
• metamorphic
• all of these commonly contain fossils

Tags

NGSS.MS-LS4-1

The most common fossils in rocks of the last 500 million years are _______

• vertebrate bones
• vertebrate teeth
• invertebrate shells
• leaves
  

The age estimate for point A in the diagram above is ______ million years

• 0.16
• 1.6
• 16
• 116

The age estimate for point B in the diagram above is ______ million years

• 35
• 65
• 245
• 570