Investigating the Sun-Earth-Moon System Name: Block:

1. Read FYI: Eclipses of the Sun and Moon As you read use the spaces below to write down any information you find especially interesting. Also define the bold terms used in the text. If you run across any other words that you don’t know the meaning of, write those down and ask your teacher to help you with them. Word/Term Definition Nodes

Nodes are places where the Moon’s _________ intersects with the plane of the _________ _________. For an eclipse to occur, it must take place at a Node.

Total Solar Eclipse

A Total Solar Eclipse occurs when the __________ __________________ covers the ________ of the ________.

Prominences

Prominences are _______ of solar _______ that can be seen shooting out away from the Sun.

Corona

The Corona is the name given to the solar _______________________.

Umbra

The _________ ___________ portion of a ___________is called the umbra.

Penumbra

The _________, ___________ portion of a ___________is called the penumbra.

Partial Solar Eclipse

A Partial Solar Eclipse happens when only __________ of the Sun’s disk is covered. Observers located within the part of the Moon’s shadow called the ________________ will see a partial solar eclipse.

Annular Solar Eclipse

When a solar eclipse occurs, but the _______is a bit ___________away from the Earth than typical, it’s at an orbital position called _____________. Under these conditions, an annular solar eclipse occurs. (The name comes from the Latin word for ring—annulus.)

Extra space for additional words or interesting information.

2. Explain why there is not a solar or lunar eclipse every month. (Hint: Look at Figure 4-5.)

3. What phase must the Moon be in for a solar eclipse to take place? (Hint: Look at Figure 4-4.)

Investigating the Sun-Earth-Moon System Name: Block:

Investigating the Sun-Earth-Moon System Name: Block:

Investigating the Sun-Earth-Moon System Name: Block: