Ch.24 Quiz Study Guide

Question 1

What causes earths seasons?

Answer 1

The earths tilt on its axis. When tilted towards it is summer. When tilted away it is winter.

Question 2

What are sunspots and what cause them?

Answer 2

They are dark cool spots the sun gets. They are caused by its magnetic field.

Question 3

Earths shadow has two parts: What are they and what describe them?

Answer 3

The two parts are umbra and penumbra. Umbra is complete shadow and penumbra is partial shadow.

Question 4

What shields earth from harmful solar radiation?

Answer 4

Earths magnetic field.

Question 5

What month does northern hemisphere summer solstice occur?

Answer 5

June

Question 6

What occurs when a new moon passes directly between the earth and sun?

Answer 6

Solar eclipse

Question 7

The moons surface has been struck by meteorites causing?

Answer 7

A crater

Question 8

The more massive an object the greater its?

Answer 8

Gravity

Question 9

Lunar Maria is made of?

Answer 9

Basalt and lava

Question 10

The violent eruptions that release huge amounts of energy?

Answer 10

Solar flare

Question 11

4th state of matter that is made of super heated gas with a positive electrical charge?

Answer 11

Plasma

Question 12

Cooler, darker areas on the sun?

Answer 12

Sunspot

Question 13

Earths orbital shape?

Answer 13

Elliptical or ellipse

Question 14

What is earths only natural satellite?

Answer 14

Moon

Question 15

Which is hotter chromosphere or photosphere?

Answer 15

Chromosphere

Question 16

What are solar prominences?

Answer 16

Large, bright feature extending out from sun.

Question 17

When does summer solstice occur?

Answer 17

June 20

Question 18

What is a lunar eclipse?

Answer 18

When earths shadow covers the moon. The earth is between sun and moon.

Question 19

What are terrace areas like on moon?

Answer 19

Light color highland

Question 20

Is earth the only planet known to have water?

Answer 20

No

Question 21

How did the mountains on the moon form? Describe them.

Answer 21

Asteroids crashed into them. There on the rim of craters, they are crystallized and lightly colored.

Question 22

What forms the magnetic field of earth?

Answer 22

Movement of molten metal.

Question 23

What are solar flares and what can they do?

Answer 23

They are exploding out of suns surface. They release large amount of radiations. They can ruin things and power grids and communication.

Question 24

What is the visible surface of sun called?

Answer 24

Photosphere

Question 25

The sun moves which way across the sky?

Answer 25

East to West

Question 26

Why does the sun have less effect on the tides than the moon?

Answer 26

It is farther away.

Question 27

What do we know about moons temperatures? Far side of moon? Water?

Answer 27

The moon is either very hot or very cold. The far side of the moon has only been seen by spacecraft. There is ice in deep craters.