Formation of the solar systems and earth

Question 1

how does the earth condense

Answer 1

out of a solar nebula (cloud of dust) combines

Question 2

nebula

Answer 2

cloud of dust

Question 3

what has the ability to create planets

Answer 3

super nova’s. They create dust clouds that spin into discs creating planets.

Question 4

what is the process of creating planets

Answer 4

accretion in a planetary disk gravity, creating planets. this occurs because the atmosphere is much different in this stage

Question 5

protoplanetary disc

Answer 5

sun (heat and gravity) in the center objects such as aestroids/matter or young planets

Question 6

density

Answer 6

the mass of an object per- volume it occupies Mass/Volume

Question 7

lithosphere

Answer 7

crust/ top layer of the earth (upper mantle)

Question 8

asthenosphere

Answer 8

upper mantle (very hot) 600km thick, very ducktile rock (flows)

Question 9

what layers of the earth do you cross in order?

Answer 9

Lithosphere, asthenosphere, mesosphere, outer core, inner core

Question 10

formation of oceans

Answer 10

1 water vapor from major gasses condensing and raning down to earth
2 icy comets flooding the earth
simple
1.
( volcanic outgassing )
2.
( comets coming much more often than today)
- lots of clouds in the atmosphere, early on, oceans started to form in low lying areas of the Lithosphere.

Question 11

Life

Answer 11

4b y/o
photosynthesis algae> turning C02 in the atmos to 02
600mya
rich diversity forms

Question 12

how long have we had abundant life on earth

Answer 12

600m years of rich diversity and animals

Question 13

whhat gasses are most abundant in the atmosphere?

Answer 13

nitrogen, oxygen,

Question 14

how was earth made

Answer 14

Super Nova- Solar Nebula- Planetary rings- Earth forms- Earths core forms- oceans and plate tectonics form

Question 15

what is energy

Answer 15

the ability/ capacity to do work.

Question 16

kinetic energy

Answer 16

energy created by movement

Question 17

heat energy

Answer 17

flow of heat from hot to cold
sources:
-solar
-geothermal heat (magma chamber)

Question 18

how old is the solar system

Answer 18

4 1/2 b years old

Question 19

how old is the universe

Answer 19

14b years old

Question 20

crab nebula

Answer 20

after math of a massive star explosion (super nova)

Question 21

convection

Answer 21

-sinking of cold air b/c it is denser (less kinetic energy) (closer molecules)
ex. ice floats

Question 22

boyancy

Answer 22

counteracts w gravity on less dense substances

Question 23

thermal expansion

Answer 23

increasing in volume for warm water- low density

Question 24

thermal contraction

Answer 24

a decrease in a material’s volume when its temperature decreases.