Study Guide 10/08/14

Question 1

___________ is a large cloud of gas and dust interstellar space.

Answer 1

Nebula

Question 2

The ________ lies between the core and the crust of the Earth.

Answer 2

Mantle

Question 3

How do nebula and solar nebula differ?

Answer 3

The nebula is a large cloud of dust in Interstellar space. A solar nebula was formed in our solar system.

Question 4

How do crust and mantle differ?

Answer 4

Crust is the thin, outermost layer of Earth. Mantle is the layer of Earth beneath the crust.

Question 5

How do rotation and revolution differ?

Answer 5

Rotation is when the Earth rotates on its axis. Revolution is one complete trip around Earth.

Question 6

How do nuclear fusion and sunspot differ?

Answer 6

A sunspot is a cool, dark spot on the sun. Nuclear fusion is when two or more low mass nuclei join together.

Question 7

To determine a planet’s period of revolution, you must know it’s ______________

Answer 7

orbit

Question 8

During Earth’s formation, materials such as nickel and iron sank to the ____________.

Answer 8

Core

Question 9

Planetary orbits are shaped like _________.

Answer 9

Ellipses

Question 10

Impacts in the early solar system

Answer 10

Brought new materials to the planets, released energy, dug craters.

Question 11

Organisms that photosynthesize get their energy from

Answer 11

The sun

Question 12

Which of the following planets has the shortest period of revolution?

Answer 12

Mercury

Question 13

Which gas in Earth’s atmosphere suggests that there is life on Earth?

Answer 13

oxygen

Question 14

Which layer of the Earth has the lowest density?

Answer 14

The crust

Question 15

What is the measure of the average kinetic energy of particles in an object?

Answer 15

temperature

Question 16

Compare a sunspot with a solar flare

Answer 16

Both of them are on the sun. One gives off light and one is a cool dark spot.

Question 17

Describe how the Earth’s oceans and continents formed.

Answer 17

Oceans formed through rain.

Question 18

Explain how pressure and gravity may have become unbalanced in the solar nebula.

Answer 18

Because pressure is pushing and forcing it and gravity is pulling.

Question 19

Define nuclear fusion in your own words. Describe how nuclear fusion generates the sun’s energy.

Answer 19

When two low mass objects join together to make another object. Tiny amounts of matter produce a large amount of energy.