Formation of the Universe, Earth, and Early Atmosphere

Question 1

Sunspots are caused by magnetic flares. True or False?

Accepted Answer

true

Question 2

A/an _______is a dense area with strong gravity. Matter, radiation & light cannot escape it.

Accepted Answer

black hole

Question 3

As bits of dust stuck together, planets started out the size of ______________________.

Accepted Answer

golf balls

Question 4

The _________ is the circumstellar disc in the Solar System located between Mars and Jupiter.

Accepted Answer

asteroid belt

Question 5

It took about _________________years for our solar system to form.

Accepted Answer

10 million

Question 6

The early atmosphere was probably mostly CO2, with little or no oxygen. True or false?

Accepted Answer

true

Question 7

____________ is the closest planet to the sun.

Accepted Answer

Mercury

Question 8

Earth is the 3rd planet from the sun. True or false?

Accepted Answer

true

Question 9

Planetesimals are ________________________.

Accepted Answer

small planets

Question 10

___________ has no moons, and is the hottest planet.

Accepted Answer

Venus

Question 11

Our atmosphere contains mostly nitrogen and oxygen. True or false?

Accepted Answer

true

Question 12

The _____________shields us from most of the sun's UV rays.

Accepted Answer

ozone

Question 13

The Solar System formed from a rotating cloud of dust and gas called the solar nebula. T or F?

Accepted Answer

true

Question 14

The star in our solar system is referred to as ________________.

Accepted Answer

The Sun

Question 15

About 95 % of the surface of the Earth is covered in water. True or false?

Accepted Answer

false

Question 16

All the planets, our universe, and galaxies rotate. True of false?

Accepted Answer

true

Question 17

The ____________________is the visible part of the sun we can see from Earth.

Accepted Answer

photosphere

Question 18

_______________is the process that drives plate tectonics.

Accepted Answer

mantle convection

Question 19

The center of the Earth is called the ______________.

Accepted Answer

core

Question 20

The earliest evidence of life on Earth dates from about 3.5 billion years ago. True or false?

Accepted Answer

true

Question 21

The ________________forms the suns outer atmosphere.

Accepted Answer

corona

Question 22

Nebulas are dependent on __________________and _________________to form planets and stars.

Accepted Answer

gravity and pressure

Question 23

Chemical & organic compounds mixed in the primitive oceans, from which life may have originated

Accepted Answer

primordial soup

Question 24

It’s sub-atomic particles have properties opposite to matter, and it can annihilate matter.

Accepted Answer

antimatter

Question 25

The Earth is the only planet in the solar system that orbits the sun. True or false?

Accepted Answer

false

Question 26

Greenhouse gases, such as CO2, absorb heat and radiate it back to Earth. True or false?

Accepted Answer

true

Question 27

....that the universe began with a small singularity, & expanded over 13.8 billion years.

Accepted Answer

The Big Bang Theory

Question 28

A ______________ is the center and starting point of a black hole.

Accepted Answer

singularity

Question 29

Einstein's Relativity Theory says that _________ are ripples in space-time that travel outward.

Accepted Answer

gravitational waves

Question 30

Nebulas are made of gas and ____________________.

Accepted Answer

dust

Question 31

The part of the Earth we live on is called the _______________________.

Accepted Answer

crust

Question 32

_____________________ is what keeps the sun shining.

Accepted Answer

nuclear fusion

Question 33

Makes up about 80 percent of universal mass, doesn't emit light or energy, & can't be observed.

Accepted Answer

dark matter

Question 34

Clouds in space are called __________________________.

Accepted Answer

nebulas

Question 35

The sun has been shining on Earth for about ______________years.

Accepted Answer

4.6 billion

Question 36

The accepted model for the formation of the Solar System is the solar nebula theory. T or F?

Accepted Answer

true

Question 37

This picture represents which continent?

Accepted Answer

Pangea

Question 38

Nuclear fusion takes place in the _____________.

Accepted Answer

core of sun

Question 39

_______________is the process of absorbing energy from the sun and CO2 to make food.

Accepted Answer

photosynthesis

Question 40

Which states moon formed after an object struck Earth and part of the mantle went into orbit?

Accepted Answer

giant impact theory

Question 41

Jupiter, Saturn, Uranus, and Neptune are called __________.

Accepted Answer

gas giants

Question 42

Science proposes that Earth's early atmosphere was a steamy mixture of CO2 and ____________.

Accepted Answer

water vapor

Formation of the Universe, Earth, and Early Atmosphere

Questions 42

Formation of the Universe, Earth, and Early Atmosphere

Questions 42