Planet Formation and Layers of Earth

Question 1

How Were the Universe, Solar System, and Earth Formed?

Answer 1

The Big Bang Theory

Question 2

When Did the Universe Form?

Answer 2

Around 13.8 Ga (Billion) Years Ago

Question 3

What Does Ga Stand For

Answer 3

Billion years ago

Question 4

When Were Stars First Made?

Answer 4

13 Ga Years Ago (800 Million Years After Big Bang)

Question 5

What Materials Make up Different Planets in the Solar System?

Answer 5

Rocks, containing common minerals like Feldspars and Metals like Magnesium and Aluminum

Question 6

What is the Crust?

Answer 6

The ___ is 35-40km thick, felsic (less Iron and Magnesium), and made up of lots of Silicon

Question 7

What is the Oceanic Crust?

Answer 7

The __ is 7-10km thick, mafic (more Iron and Magnesium), and made up of less Silicon

Question 8

What is the Mantle?

Answer 8

The ___ is 40-2,900km, ultra-mafic (Lots of Iron and Magnesium, and made up of little Silicon

Question 9

What is the Outer Core?

Answer 9

The __ is liquid and made up of Iron Alloy

Question 10

What is the Inner Core

Answer 10

The ___ is Solid and made up of Iron and Magnesium

Question 11

What is the Lithosphere?

Answer 11

The ___ is 0-150km deep and is apart of the Crust and Mantle

Question 12

What is the Asthenosphere?

Answer 12

The ___ is 100-150km deep, and is only apart of the mantle

Question 13

How does pressure change as depth increases?

Answer 13

The pressure increases as it gets deeper

Question 14

How does the temperature change as depth increases?

Answer 14

The temperature increases as it gets deeper

Question 15

How does density change as depth increases?

Answer 15

The density increases as it gets deeper

Question 16

How do P-Waves Velocity React to Increased Depth?

Answer 16

The wave’s velocity increases as depth increases

Question 17

How do S-Waves Velocity React to Increased Depth?

Answer 17

The wave’s velocity gradually increases with depth

Question 18

What Causes the S-Wave Shadow?

Answer 18

The liquid in the outer core doesn’t let it go through, so it goes around the outercore.

Question 19

What Causes the P-Wave Shadow

Answer 19

The refraction at the core bends the wave away

Question 20

How Was the Moon Formed?

Answer 20

During a Collision between Earth and another planet, the debris from the impact collected in an orbit around the Earth