Unit 1 Study Guide

Darkening of one heavenly body by another.

Curved phase between new and quarter moon.

Of the moon

Phase when the moon is between the sun and the earth.

Darkening of the moon by the shadow of the earth.

Bowl-shaped hole on the surface of the moon.

Darkening of the sun when the moon covers only a portion of it.

Phase between quarter and full moon.

Darkening of the sun when the moon covers all but a ring of it.

Phase showing the entire face of the moon.

One of the shapes in the monthly cycle of the moon.

Lights in the northern sky caused by glowing gases.

Element first discovered on the sun.

Darkening of the entire sun by the moon.

Half-circle phase of the moon.

Rise or fall of the ocean surface because of the moon's gravity.

Dark area on the sun caused by a storm.

Star that changes in brightness.

Steam of particles coming from the sun.

Line extending out from a crater.

seaSmooth, dark area on the surface of the moon.

Transfer of light and heat energy directly through space.

Of the sun.

Sun and all the heavenly bodies in orbit around it.

Any darkening fo the sun by the moon.

Heavenly body in orbit around the planet.

The diameter of the sun is ___ times the diameter of the earth.

The earth is the right distance from the sun so that water can be in the ______ form.

Twenty-five percent of the sun is helium; most of the other 75 percent is _______.

The earth is kept in its orbit by the _____ of the sun.

The number of sunspots increases and decreases in a cycle of about ____ years.

During a ______ eclipse, observers can see proof that the earth is round.

During a total _____ eclipse, observers see glowing gases stream out from the sun.

Scientists discovered ______ on the sun by studying the light from the sun.

The earth's one satellite s called the ____.

There are _____ days in one complete cycle of the phases of the moon.

Six hours after a high tide there will be a _____ tide.

A lunar eclipse can occur only during the ____ phase of the moon.

The moon is not suited for life because it has no ______ or _____.

The earth's diameter is more than 3.5 times the diameter of the  ____.

In a solar eclipse, the black disk that covers the sun is the _____.

There is no eclipse at new moon if the moon's shadow _____ the earth.

If the sun were a variable star....

God formed the earth "to be inhabited." What does not help make the earth inhabitable?

The many things that re just right for life to exist on earth are a result of.....

How does the sun produce energy?

The way the aurora borealis is produced shows how God can....

Give the moon's phases in the right order.

You should never look through a telescope to see....

During the total part of a lunar eclipse, the moon is not completely dark because....

The fact that eclipses can be predicted many years ahead show that....

To scientists, a total solar eclipse is of more interest than an annular eclipse because...

Compared to the sun, the moon looks....