Gravity
Seasons
Tides
Eclipse
Extra
100
the attractive force between objects; the force that moves objects downhill
Gravity
100
a period of the year that is distinguished by special climate conditions; due to the Earth's tilted axis; different parts of the Earth receive the Sun's most direct rays
Seasons
100
the periodic rise and fall of the level of water in the ocean
Tides
100
the partial or total blocking of one object in space by another
Eclipse
100
the amount of matter in an object
Mass
200
the scientific law that states that every object in the universe attracts every other object
The Law of Universal Gravitation
200
the spinning motion of a planet on its axis
Rotation
200
What causes tides?
The moon's gravitational pull
200
the movement of an object around another object
Revolution
200
Describe weight
a measure of the force of gravity acting on an object
300
What causes planets to orbit the Sun rather than the Sun to orbit the planets?
The Sun has a greater mass than the planets.
300
What causes seasons?
The tilted axis
300
the tide with the least difference between consecutive low and high tides
Neap Tide
300
Draw a Lunar Eclipse
300
What is the difference between mass and weight?
Weight varies depending on where the object is in the solar system
400
What are the variables of gravity?
distance and mass
400
What season is the northern hemisphere.
Winter
400
That is a Spring tide?
the tide with the greatest difference between consecutive low and high tides
400
Draw a Solar Eclipse.
400
Weight _________ depending on where the object is in the Solar System.
Fill in the blank
varies
500
If an object's mass is 5 pounds on Earth, what will be changed about the object if it is taken to another planet?
Its weight
500
Why are mid-latitude regions warmer than northern regions?
Because the sun's rays have to travel through more atmosphere to reach northern regions, so the sun's rays aren't as strong.
500
Both the Sun and the Moon affect Earth's tides, but the Moon's affect is greater than the Sun's. Why?
The Sun has more mass than the Moon, but the Moon is much closer to Earth than the Sun, so its gravitational force on Earth is greater.
500
What time of day does a solar eclipse happen?
Daytime
500
What is a heliocentric model?
The sun is the center of the universe.