The Day the Mesozoic Died

Paleontologists find more life __________the KT Boundary

• Below

• Above

Tags

NGSS.MS-LS4-1

What was found in the K-T boundary that lead Dr. Alvarez to believe something from space hit the earth 656 million years ago?

• Plutonium-244

• Many diverse forams

• Iridium

• Peanut butter

Why did small animals have a better chance of surviving the asteroid impact that killed off the dinosaurs? Mark all that apply.

• They were able to reproduce faster.

• They mostly lived in trees.

• They had a better health care plan.

• They fed off those organisms that died.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What happened to the foram fossils above the K-T boundary? Mark all that apply.

• They were smaller.

• They were less diverse.

• They were larger.

• They were more diverse.

Tags

NGSS.MS-LS4-1

What were the first plants to grow after the mass extinction 65 million years ago?

• Palm trees

• Flowering plants

• Ferns

• Dandelions

Tags

NGSS.HS-LS4-5

Which Era ended because of volcanic activity and an asteroid or meteor hit Earth?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic

Which Era is known as the age of reptiles?

• Precambrian Time

• Paleozoic Era

• Mesozoic Era

• Cenozoic

When a large amount of species died this is called ______

• Evolution

• Mass extinction

• Geological Timescale

Tags

NGSS.MS-LS4-1

What evidence supports the theory that an asteroid impact led to the mass extinction at the end of the Mesozoic Era?

• High levels of iridium in the K-T boundary

• Increased volcanic activity

• Rise in sea levels

• Formation of mountain ranges

Tags

NGSS.MS-LS4-1

Which scientific method was used to date the K-T boundary and support the asteroid impact hypothesis?

• Radiometric dating

• Carbon dating

• Dendrochronology

• Ice core sampling