Show:
Vocabulary
Our Moon
The Sun
Earth's Motion
Misc.
100

Force of attraction between any 2 objects due to their mass

gravity

100

Is there an atomosphere on the moon?

No - there is no atmosphere on the moon

100

What direction does the sun appear to move in the sky

Rises in the east and sets in the west

or counterclockwise

100
Number of days it takes for the Earth to orbit the Sun once
What is 365 1/4 days?
100

Pluto and Eris are examples of these

What are Dwarf Planets?

200

path one object travels around another object

orbit

200

The moon appears differently because how it is lit by the sun. The shapes of the moon in the sky are called

phases

200

When is the sun at its highest point in the sky?

Mid-day or noon

200

In winter, the sun appears much lower in the sky and in the winter, the sun appears _______?

The sun appears much lower in the sky in winter

200
Large, irregular shaped rocky or metallic objects that orbit the Sun
What are Asteroids?
300

One complete trip of one object around another object

revolution

300

Is there gravity on the moon?

yes

300

How long does it take the earth to make one revolution around the sun?

365 days

300
The reason we have day and night
What is Earth's Rotation on its Axis?
300

The imaginary line that runs through the earth about which it rotates is 23 degrees and is called the earth's ______?

axis

400

tendency of a moving object to keep moving in a straight line or any object to resist a change in motion

inertia

400

How long does it take the moon to revolve around earth?

About 27 days

400

If it is winter in the northern hemisphere, what season is it in the southern hemisphere? Why?

It is summer in the southern hemisphere because the earth is tilted on its axis

400
Term for the two days a year when we have exactly 12 hours of sunlight
What are Autumnal Equinox and Vernal Equinox?
400
Term for the shape of Earth's orbit around the Sun
What is an Elliptical Orbit?
500

a complete spin on the axis

rotation

500

What do we call it when the moon appears to be getting larger each day?  Waxing or Waning?

Waxing

500

What causes the seasons (2 things(

The tilted axis of the earth and earth's revolution around the sun

500
The two reasons that we have seasons on Earth
What is Earth's tilt on its Axis and Earth's orbit?
500
Meteoroids that enter Earth's atmosphere and are also called shooting stars
What are Meteors?