Show:
Vocabulary
Gravity And motion
Earth In Space
Eclipes And Tides
Phases
100
The study of the stars, mooon, and other objects in space
What is astonomy?
100
These two forces keep the Earth in orbit around the sun
Gravity and Interia
100
What is the period of rotation and revolution of Earth?
The period of rotation and revolution of Earth is approximately 24 hours
100
The blocking of the sunlight to Earth that occurs when the moon is directly between the sun and Earth
Solar Eclipse
100
One of the different apperant shapes of the moon as seen on Earth
Phase
200
The spinning motionof a planet on its axis
What is rotation?
200
These two factors affect the force of gravity
Mass and distance
200
The Earths rotation spinning on its axis, which is an imaginary line passing throught the North and South poles causes what?
This causes day and night.
200
The blocking of sunlight to the moon that occurs when the Earth is directly between the sun and moon.
Lunar Eclipse
200
Its surface reflects light from the sun. And despite the fact that it sometimes seems to shine very brightly, the moon reflects only between 3 and 12 percent of the sunlight that hits it.
Why does the moon shine?
300
The movement of an object around another object
What is revolution?
300
These two factors, mass and distance, affects the force of gravity because of the amount exerted on each other
How do these two factors affect the force?
300
When the top of the Earth is inclined toward the sun, it's summer in the Northern Hemisphere and winter is the Southern Hemisphere. When the top of the Earth points away from the sun it's winter in the Northern Hemisphere and summer in the Southern Hemisphere.
This causes Earths seasons.
300
The periodic rise and fall of the level of water in the ocean
Tides
300
This phase of the moon consists of the moon you can see growing into a cresent shape. What phase is it?
This is the second phase of the moon,new cresent.
400
The scientific law that states that every object in the universe attracts every other object
What is Law Of Universal Gravitation?
400
These two factors also keep the moon in orbit around the Earth
Gravity and Interia
400
When the sun reaches its greatest distance North or South of the equator. June 21 and december 21
Solstices
400
The gravitational interaction between the Earth and the Moon.
This is what causes Tides
400
When you can see half of the moons lighted side. What phase is this?
This is the seventh phase of the moon, last quarter.
500
The two days of the year when the sun reaches its greatest distance North or South of the equator
What is Solstice?
500
The force that attracts a body toward the center of the earth, or toward any other physical body having mass is called...
Gravity
500
When neither hemisphere is tilted toward or away from the sun. March 20 and September 22
Equinoxes
500
The partial or total blocking of one object in space by another
This is an eclipse
500
A moon day is 27-1/2 earth days. That is also how long it takes for the moon to rotate around the earth. That's a moon year. So the length of time it takes for the moon to spin around on its axis once is the same amount of time it takes the moon to spin around the earth once.
This is why the day and year are the same on the moon.