Fossils

Produced when sediments fill in a cavity made when an object decayed 

• cast
• mold
• original remains

Cavity in a rock made when an organism decayed

• cast
• mold 
• original remains

Law that states in undisturbed rocks, the oldest rocks are on the bottom and the rocks become progressively younger toward the top 

• superposition 
• uniformitarianism
• half-life

Tags

NGSS.MS-ESS1-4

_______ are the preserved remains or traces of living things.

• bones
• fossils
• artifacts
• organic matter

Tags

NGSS.MS-LS4-1

Fossils can provide evidence of how life has changed over time, how Earth's surface has changed, and clues about what past environments were like.

• True
• False

Tags

NGSS.MS-LS4-1

NGSS.MS-ESS1-4

NGSS.MS-LS4-2

NGSS.MS-ESS2-3

A dinosaur track, a trail, and burrow are all examples of

• casts
• molds
• trace fossils
• preserved remains

Tags

NGSS.MS-LS4-1

All the information that paleontologists have gathered about past life is called the _____

• geologic time
• geologic eras
• fossil eras
• fossil record

Tags

NGSS.MS-LS4-1

If you found a rock containing a very complex fossil, you could infer that the rock is 

• relatively young
• very old
• igneous
• metamorphic

Tags

NGSS.MS-ESS1-4

This is an example of a

• cast fossil
• mold fossil
• trace fossil
• carbon film

Tags

NGSS.MS-LS4-1

This 45,000 year old baby mammoth was found preserved in ice. What type of fossil would this be?

(a)  

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2