Rotation/Revolution
Gravity
Vocab
Earth and Moon
The Solar System
100
What is the difference between rotation and revolution?
Rotation is spinning in place Revolution is going around an object
100
What is gravity?
The force of attraction between any two objects
100
The spinning of the earth on its axis is called ________________ and when the earth makes one complete trip around the sun it is called ______________________
rotation revolution
100
The moon shines with light that comes from the ________________ and reflects off the Moon's surface
sun
100

Earth rotates once on its axis every ______________

24 hours

200
Approximately how long does it take for the earth to rotate one time? Revolve one time?
It takes approximately 24 hours to rotate It takes approximately 365 days to revolve around the sun
200
The sun's gravitational pull on Earth is ( greater/ less) than its pull on a planet much farther away (Like Neptune)
greater
200
I am the path an object (like a planet) takes as it moves around another object
orbit
200
The appearance and shape of the Moon changes. We call these changes, _____________
phases
200

The sun rises in the ___________ and sets in the______________

east     west

300

Day and night are caused by the Earth's __________

rotation

300
What does the gravitational pull between the Earth and the Moon cause?
tides
300
I am the SHAPE of a planet's orbit
ellipse
300
The rise and fall of the ocean's surface because of the gravity of the Moon and Sun is the _____________
tide
300

Why does the sun appear brighter than other stars?

It is closer to the Earth than any other star.

400
How does the rotation of the earth cause day and night?
It is spinning on its axis and when it is faced away from the sun it is night time. If it is facing towards the sun it is day time
400
The strength of gravity increases as the _____________ of objects increases
mass
400
When the moon moves into Earth's shadow it is called a ____________________________
lunar eclipse
400
When the Sun and Moon align at full moon and pull on Earth together, the higher high tides and lower low tides occur and are called _________________
spring tides
400
The only place that humans have visited within our solar system is ___________________
the moon
500
How does the revolution of the earth cause where we live (Northern Hemisphere) to have seasons?
Every year the Earth makes one trip around the sun. As it travels sunlight strikes different parts of the Earth at different angles. The different angles that the sun hits the Earth causes us to have different seasons
500
The strength of gravity ____________________ as the distance between objects increases.
decreases
500
When the Moon passes directly between the Sun and Earth a ______________________ occurs
solar eclipse
500
When the Sun and Moon pull at a right angle and their gravitational pulls partly cancel each other out, more moderate (not too high, not too low) tides occur and are called _____________________
neap tides
500
Name the 8 planets in order; starting with the closest one to the sun
Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune
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