Rotation
Revolution
Seasons
Moon Phases
Vocab
Random
100
Define rotation
The spinning of the Earth on its axis
When an object rotates on it's own axis
100
Define revolution.
Revolution is the movement of the Earth around the Sun.
When an object revolves or spins around another object
100
What two factors are responsible for the creation of the seasons?
The tilt of the Earth's axis and the revolution of the Earth around the Sun.
100
Does the moon make its own light? Explain your answer.
No, the moon does not make its own light. Sunlight is reflected off of the surface of the moon to illuminate it.
100
Define Equator
an imaginary line drawn around Earth that divides the Earth into Northern and Southern Hemispheres
100
What force keeps the Earth in orbit around the Sun and the Moon in orbit around the Earth
Gravity
200
How long does a single rotation on Earth last?
24 hours
200
How long does a single Earth revolution last?
365 days or 1 year
200
Look at picture #1. What is the seasons in the Northern Hemisphere at Point D.
Spring.
200
How many days does it take to go from one New Moon to another New Moon?
On average 28-29 days. One Lunar Cycle = 29 days
200
Define Axis
An imaginary line that runs from the North Pole to the South Pole upon which an object rotates
200
What type of Tide is occurring in the picture below?
Spring Tide
300
Which direction does the Earth rotate.
Counter-clockwise
300
What shape is the Earth's orbit.
Elliptical (oval)
300
What season is it in the Northern Hemisphere when it is spring in the Southern Hemisphere?
Fall
300
What moon phase is at position 4?
Waxing Gibbous
300
Define Hemisphere
a half of the earth, usually as divided into northern and southern halves by the equator
300
Which produces warmer temperature, Direct or Indirect sunlight?
Direct Sunlight
400
Which hemisphere is experiencing day?
Both Northern & Southern Hemisphere
400
Describe the motion of the Moon, Earth and Sun in terms of revolution
The Moon revolves around Earth, and the Earth revolves around sun
400
During which season is there the longest days? Why are days longest then?
Day length is the longest during the summer. Days are longest then because the Earth is tilted towards the Sun.
400
Which phases are waning?
6 & 8
400
Define Equinox & Solstice
Equinox- These are the days when the Sun is exactly above the Equator, which makes day and night of equal length
Solstice- One of the two times of the year when the most amount of daylight time or the least amount of daylight time is in a single day
400
Define Spring & Neap Tides
Spring: When high tides are a little higher and low tides are a little lower than average
Neap: When high & low tides are in their "normal" depth
500
Explain the science behind Day & Night
When the Earth rotates around it axis, the half of the Earth that is facing the Sun is in day and the half that not facing the Sun is in night.
500
Referring to the picture, which section represents the following seasons: Summer & Spring
(Top, Bottom, Left, Right)
Summer: Left
Spring: Top
500
If the Earth's axis wasn't tilted (0o tilt), how would the seasons on Earth be different?
Seasons would not exist. All areas of the Earth would have similar climates.
500
June 4th has a Waxing Gibbous Moon, what moon phase will occur on June 11th?
Waning Gibbous
500
Define Umbra & Penumbra
Umbra- the innermost and darkest part of a shadow (cone shaped)
Penumbra- the region in which only a portion of the light source is obscured
500
What is the order for a SOLAR & LUNAR Eclipse?
Solar: Sun-Moon-Earth
Lunar: Sun- Earth- Moon