fossils

Question 1

why are fossils useful

Answer 1

• help us as evidence of evolution

Question 2

what are some problems with fossils?

Answer 2

• hard to find
• hard to find plant fossils
• can’t assume everything has been fossilised e.g. jellyfish are too soft to fossilise

Question 3

how are fossils made?

Answer 3

• remains of an ancient plant or animal turn into fossils
• old fossils can be ancient, but movement of ground pushes them together and causes a mountain to be created, overtime weathering can break down top of a mountain and fossil will appear on above ground

Question 4

name the 4 types of fossils

Answer 4

1. trace
2. mold
3. resin
4. body

Question 5

what are trace fossils?

Answer 5

footprints, egg shells, bite marks or 💩

Question 6

what are mold fossils?

Answer 6

mold of an old organism in rock ▶️ organism dies but shape says in rock

Question 7

what are resin fossils?

Answer 7

small creatures that get stuck in sap from trees and sun hardens them

Question 8

what are body fossils?

Answer 8

teeth and bones that decay and something get into mould and hardens

Question 9

what is speciation?

Answer 9

new species - same specie becomes different and die out

Question 10

what is extinction?

Answer 10

the specie and DNA of an animal or plant dies out

Question 11

whats one cause of extinction?

Answer 11

environment

Question 12

what is large scale extinction called

Answer 12

mass extinction

Question 13

what does isolation of things mean?

Answer 13

a physical barrier between the same type of animal/plant