Fossils and Mass Extinctions

Why are scientists more likely to find a shell fossil and not a jellyfish fossil

• shells are formed in volcanoes

• shells have body structures that are likely to be preserved.

• Shells are found in top layers of rocks

• Jellyfish are more likely to be preserved

Tags

NGSS.MS-LS4-1

This organism likely had

• two feet and was bipedal

• three feet and was tripedal

• four feet and was quadrupedal

• one foot and hopped around

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

Which layer of rock is the oldest?

• A
• B
• C
• D

Tags

NGSS.MS-ESS1-4

Traces or remains of organisms that lived long ago

• Fossil
• Unconformity
• Superposition
• Column

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What is a mass extinction?

• When all the species in a particular area on earth suddenly go extinct
• When multiple species from all over the earth suddenly go extinct 
• When one species goes extinct due to habitat changes
• When all life on earth is wiped out 

Tags

NGSS.HS-LS4-5

There have been _____ mass extinction events in Earth's history.

• 3
• 4
• 5
• 2

Tags

NGSS.MS-LS4-1

According to most scientists, what is the ultimate cause of most mass extinctions?

• overhunting

• evolution of new species to replace old ones

• major change in environment or climate

• asteroid impact

Tags

NGSS.HS-LS4-5

At the end of the Mesozoic Era (Age of the Reptiles) there was a mass extinction.  Which of the following is attributed as being the main cause?

• asteroid or comet impact
• major volcanic eruption
• earthquakes
• climatic changes

Tags

NGSS.MS-LS4-1

What type of fossil is this?

• cast

• true form

• mold

TRUE or FALSE: Sand castles are like cast fossils because they are 3D and pop up.

• TRUE

• FALSE