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Cycles of the Earth

Key terms and study info for seasons, moon phases, & tides

QuestionAnswer
The spinning motion of a planet on its axis Rotation
The path of an object as it revolves around another Orbit
The days of the year when the sun shines most directly on the northern or southern hemisphere Solstice
The movement of an object around another object Revolution
The days of the year when the sun shines most directly on the equator Equinox
The force that attracts (pulls) objects towards each other Gravity
The amount of matter in an object Mass
The tendency of an object to resist a change in motion Inertia
One of the different shapes of the moon seen from Earth Phase
When the Moon is directly between the sun and the Earth, and blocks the light from the Earth Solar Eclipse
The rise or fall of Earth’s waters Tide
The tide with the smallest difference between high and low tide Neap Tide
The blocking of one object in space by another Eclipse
When the Earth is directly between the sun and the moon, and blocks the light from the moon Lunar Eclipse
The tide with the largest difference between high and low tide Spring Tide
What are the two forces that keep the Earth revolving around the sun? Inertia and Gravity
What are the two factors that affect the strength of gravity Mass and Distance
If you are on a planet where the force of gravity is stronger, how will it affect your weight You will weigh more
How long does it take for the Earth to revolve around the sun? One Year; 365 1/4 days
What is the biggest factor that causes the Earth to have seasons The Earth is tilted on its axis
Why is it usually warmer near the equator, than other areas of the Earth? The Equator gets more direct sunlight than any other place on earth.
What 3 things happen on our Winter Solstice Sun is most direct on southern hemisphere; 1st day of winter; Shortest day of the year
In which phase of the moon can we see only a small section that is lit? Crescent
In which phase of the moon can we see most of what is lit, but not quite all? Gibbous
What term describes the moon as it apears to be getting bigger? Waxing
Which phase of the moon does a Lunar Eclipse occur in? Full Moon
What causes the Earth's tides The moon's gravity pulls on Earth's water
How often do the tides change? about every 6 hours
How long does it take for the moon to complete the lunar cycle about a month (29.5 days)
What causes the Spring Tide The Sun and Moon's gravity pull together, to make the high tide larger than normal.
What phase of the moon does the Spring Tide occur? New Moon or Full Moon
What phase of the moon does the Neap Tide occur? 1st or 3rd Quarter
Created by: 6thGradeScience
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