K-T Boundary

1. What are fossils?

• dinosaurs that were once thought to steal eggs out of nests

• feathers that the Citipati dinosaur may have had on its arms

• remains of ancient life that are usually buried in rock

• s-shaped necks and other similarities between birds and dinosaurs

Tags

NGSS.MS-LS4-1

What is called the thin layer of dark clay?

• Walter Alvarez Layer
• Italian layer
• K-T boundary
• Foraminifera's boundary

Tags

NGSS.MS-ESS1-4

The K-T boundary can be found in:

• Italy
• Italy and Spain
• Europe 
• Almost all around the world

The K-T boundary separates which two periods in Earth's history?

• Cretaceous and Tertiary
• Cretaceous and Jurassic
• Jurassic and Permian
• Carboniferous and Jurassic

Tags

NGSS.MS-ESS1-4

Which event is related to the K-T boundary?

• The Mammoth extinction
•  The Dinosaurs extinction
• The Foraminifera extinction
• All of above

Tags

NGSS.MS-LS4-1

How old is the K-T boundary?

• 65 MYA
• 4.5 BYA
• 2 MYA
• A long time ago

Tags

NGSS.MS-ESS1-4

NGSS.MS-LS4-1

What is unique about the K-T boundary?

• The color it has
• It's enormous width
• The position in the sediments
• Its high concentration of Iridium

Tags

NGSS.HS-ESS1-6

NGSS.HS-LS4-5

What is Iridium?

• A common metal in the Earth
• A rare metal in the Earth
• A rare metal in the Moon
• A particular type of fossil 

Tags

NGSS.MS-ESS3-1

Where did the Iridium in K-T boundary come from ?

• The explosion of a Supernova
• An asteroid that crashed into the Earth
• The Sun
• The vulcanism that occurred during Carboniferous

Tags

NGSS.MS-ESS1-4

NGSS.MS-ESS2-2

why was it important to find a huge crater for Alvarez's investigation?

• To find the Iridium
• To prove the impact of a huge asteroid
• To prove the extinction of dinosaurs
• To find the fossil of the oldest dinosaur

Tags

NGSS.MS-LS4-1