Science Exam- Earth And The Solar System+Life (June 9, 2014)

Front 1

Star

Back 1

A fixed luminous point in the night sky that is large.

Front 2

Planet

Back 2

A celestial body moving in an elliptical orbit around a star.

Front 3

Accretion

Back 3

the process of growth or increase

Front 4

Earth

Back 4

the substance of the land surface; soil

Front 5

Exoplanet

Back 5

a planet that orbits a star outside of the Solar System.

Front 6

Differentiation

Back 6

the action or process of changing

Front 7

Solar System

Back 7

the collection of eight planets and their moons in orbit around the sun.

Front 8

Atmosphere

Back 8

gases surrounding the Earth or another planet

Front 9

Core

Back 9

the center, most essential part of a planet, or anything

Front 10

Crust

Back 10

form into a hard outer layer

Front 11

Mantle

Back 11

the layer of Earth between the crust and the core

Front 12

Continental Drift

Back 12

The idea, a foundational concept of plate tectonics, that the Earth's continents move in relation to each other and had once formed a supercontinent called Pangaea.

Front 13

Plate Tectonics

Back 13

A theory explaining the structure of the earth’s crust

Front 14

Tectonic Plates

Back 14

Theory that the earth lithosphere is divided into about 12 large plates

Front 15

Claim Testing

Back 15

testing something that will, or can happen

Front 16

Archaen Eon

Back 16

began 4 billion years ago with the formation of the earth crust

Front 17

Astronomical Unit

Back 17

149.6 million kilometers, the mean distance from the center of the earth to the sun.

Front 18

Deep Time

Back 18

the time frame when scientists believed the earth had existed

Front 19

Geology

Back 19

the science that deals with the earths physical structure and substance.

Front 20

Geography

Back 20

the study of the physical features of the earth.

Front 21

Scale

Back 21

a way to measure units

Front 22

Plantesimals

Back 22

a body/planet that came together with many others

Front 23

Comets/Asteroids

Back 23

small bodies orbiting the sun

Front 24

Chemical abundances of the universe

Back 24

Hydrogen (75%) , Helium (23%)

Front 25

Chemical abundances of the earth's crust

Back 25

Oxygen (46%) , Silicon (27%) , Aluminum (8%) ,

Iron (6%) , Calcium (5%) , Magnessium (3%) ,

Sodium (2%) , Potassium (2%)

Front 26

Chemical abundances of the sun

Back 26

Hydrogen (75%) , Helium (23%) , Oxygen (1%)

Front 27

How did the moon form?

Back 27

(Accretion), and asteroid hit earth and a piece broke off. Over time the little pieces started to form the moon.

Front 28

What are the layers of the earth?

Back 28

Core (Nickel and Iron),
Mantle (Light semi-molten rockes),
Crust (Very light rocks such as basalts and granites)

Front 29

Two types of crust

Back 29

Continental Crust: thick, lightweight crust under landmasses.

Oceanic Crust: thin, heavy crust under the seafloor.

Front 30

Alfred Wegner

Back 30

A person who produced evidence in 1912 that the continents are in motion, but because he could not explain what forces could move them, geologist reflected his ideas

Front 31

Harry Hess

Back 31

A person who confirmed Wegner's ideas by using the evidence of seafloor spreading to explain what moved continents

Front 32

Eratosthenes

Back 32

This person compared the position of the sun's rays in two locations to calculate the spherical size of the Earth with reasonable accuracy

Front 33

Three types of plate tectonic movement

Back 33

Divergent- Two plates move away from each other
Convergent- Collision of two plates
Transform- Two plates slide by one another

Front 34

Divisions of the geologic time scale

Back 34

Eons
Ereas
Periods

Front 35

Conditions of early earth

Back 35

-molten lava
-no oxygen
-asteroids and meteorites all over the place
-high levels of radiation