Science 3.3

Question 0

A fossil in which an impression of an organism

Answer 0

mold fossil

Question 1

A fossil in which the hard parts of an organism is a?

Answer 1

A petrified fossil

Question 2

A fossil in which a mold fossil is filled with minerals

Answer 2

cast fossil

Question 3

A fossil made by an imprint left behind by an organism

Answer 3

trace fossil

Question 4

a fossil in which the actual bone and/or tissue of an organism is preserved

Answer 4

true form fossil

Question 5

extinct marine insects that were plentiful during the early Paleozoic Era

Answer 5

trilobites

Question 6

the sudden increase in the diversity of life at the beginning of the Paleozoic Era

Answer 6

Cambrian Explosion

Question 7

The process in which one substance changes into another substance.

Answer 7

radioactive decay

Question 8

the idea that older rocks are typically found deeper in the Earth than younger fossils

Answer 8

principle of superposition

Question 9

the time it takes for half of one element to transform into another element

Answer 9

half-life

Question 10

an element that decays into another element

Answer 10

parent element

Question 11

an element that is formed when another element decays

Answer 11

daughter element

Question 12

a visual record of Earth’s history

Answer 12

geologic time scale

Question 13

a collection of dust and gas that can form planets and stars

Answer 13

nebula

Question 14

small land masses that appeared during the Archeon Eon

Answer 14

protocontinents

Question 15

Which were the first vertebrates?

Answer 15

Fish

Question 16

The Mesozoic Era is known as the age of the ____________________.

Answer 16

Reptiles

Question 17

How old do most scientists think the Earth is?

Answer 17

4.6 billion years

Question 18

Which animal is responsible for the Oxygen Catastrophy?

Answer 18

Cyanobacteria

Question 19

Carbon 14 decays into which element?

Answer 19

Nitrogen

Question 20

Which is an example of a true form fossil?

Answer 20

Animal in Amber
frozen mammoth,
mummy dinosaur,
bones in La Brea tar pits

Question 21

How long was the Precambrian Era?

Answer 21

3.93 billion

Question 22

During which eon did the oceans form?

Answer 22

Archean Eon

Question 23

Uranium decays into what?

Answer 23

Lead

Question 24

During which eon did it first begin to rain?

Answer 24

Archean

Question 25

During which era did fish first appear?

Answer 25

Paleozoic Era

Question 26

Dinosaurs existed during which era?

Answer 26

Mesozoic Era

Question 27

What is do most scientists think happened at the end of the Mesozoic?

Answer 27

A mass extinction

Question 28

What advantages did reptiles have over amphibians?

Answer 28

stronger lungs leathery skin leathery eggs

Question 29

During which era did reptiles first appear?

Answer 29

Paleozoic Era

Question 30

During which eon was the Earth molten rock?

Answer 30

Hadean

Question 31

During which eon did multicellural life first appear?

Answer 31

Proterozoic Era

Question 32

Which of the following means "visible life?"

Answer 32

Phanerozoic

Question 33

What is the current geologic era?

Answer 33

Cenozoic

Question 34

Which type animal did not exist during the Paleozoic Era?

Answer 34

Mammals

Question 35

List the four geological eons in order.

Answer 35

Hadean, Archean, Proterozoic, Phanerozoic

Question 36

During which eon was the earth first oxygenated?

Answer 36

Archean Eon

Question 37

What era is know as the age of the mammal?

Answer 37

Cenozoic

Question 38

During which eon did life first appear?

Answer 38

Archean Eon

Question 39

What is the name give to the period in which cyanobacteria produced a large amount of oxygen that killed off animals that thrived in low oxygen environments?

Answer 39

Oxygen Catastrophe

Question 40

What is the name of the ancient super continent which was made up of all current continents?

Answer 40

Pangea

Question 41

Which type of reptiles only have openings in the skull for their eyes and nose?

Answer 41

Anapsids

Question 42

Which type of reptiles have two pairs of temporal opening in their skulls?

Answer 42

Diapsids

Question 43

How do most scientists believe dinosaurs died out?

Answer 43

Giant Asteroid

Question 44

Why did mammals become so plentiful during the Cenozoic era?

Answer 44

There were fewer large reptiles to eat them and compete for food.

Question 45

What is the brittle whitish yellow element found in asteroids?

Answer 45

Iridium

Question 46

What do we call a period of cold and glaciation?

Answer 46

Ice Age

Question 47

Why were mammals able to survive an asteroid hit while dinosaurs were not?

Answer 47

They were much smaller and didn’t need as much food.

Question 48

During which era did insects first appear?

Answer 48

Paleozoic Era

Question 49

What evidence is there for a massive asteroid killing off the dinosaurs?

Answer 49

Iridium | Giant Crater

Question 50

What human attribute helped man survive prehistoric times?

Answer 50

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