Vocab
What is the "blue planet"
Earth
the ______ is mainly water
Earth
Put in largest to smallest size order.
Earth, sun, moon
Sun, Earth, Moon
When North America is pointed near the sun it experiences ______.
day
How many seasons are there?
four
What is the ball of gas that produces light and heat energy for Earth?
sun
The sun is a huge ball of _______ with a _______ surface.
gas. hot
When building a model of the Earth, sun and moon. What kind of ball would you use for the moon?
golf ball or tennis ball
When North America is pointed away from the sun it experiences ______.
night
What causes the seasons?
The Earth's revolving around the sun.
What is any object that revolves around another object in space?
What is a similarity between the Earth, sun and moon?
part of the solar system
spheres (same shape)
Core
Gravity
What does the Sun and Earth have that the moon does not?
Atmosphere
What causes day and night?
Earth rotating on it's axis
During ___________, Earth's axis points towards the sun.
summer
What is an orbit?
the path of one object in space around another object.
What 2 characteristics does the Earth have that the moon does not?
Water and Atmosphere
The Moon revolves around the Earth, it takes _______ days and causes _______
27 days; tides
How long does it take for Earth to rotate around once on its axis?
24 hours
During ________, the Earth's axis points away from the sun.
winter
What does revolve mean?
to go around another object
Earth orbits the sun, yet the sun appears to move across Earth's sky, rising in the east and setting in the west. What causes this apparent movement of the sun?
Earth's rotation on its axis approximately every 24 hours.
The Earth's revolves around the sun, it takes ______ days and causes _____
365: seasons
The sun rises in the _______. The sun sets in the ______.
east
west
During ______ and _______, Earth's axis points neither away nor toward the sun.
spring fall