Vocabulary
Flashlight Ex.
Daylight Hours
Seasons
Other
100
Define Rotation.
What is Rotation: Earth’s turning motion on its axis.
100
In the flashlight example, which angle produces the greatest among of energy? Explain.
What is the amount of energy stays the same throughout it is just dispersed over a larger area and less dense at a smaller angle.
100
True or False: The Earth is always tilted toward the Sun.
What is False. The Earth is always tilted toward the North Star.
100
What seasons are the two equinoxes in?
What is they occur in spring and fall.
100
What causes day and night?
What is the rotation of Earth on its axis.
200
Define Revolution.
What is Revolution: The movement of one object around another.
200
In the flashlight example, what caused the different shape of the light spot?
What is the size and shape of the light spot depend on the angle between the light source and the surface the light source is projecting on.
200
If the Sunrise it at 7:07 and its sets at 6:55, what is the total hours of daylight?
What is 11:08 of daylight.
200
Explain the importance of the North Star.
What is the axis that Earth rotates on points towards the North Star (Polaris). The North Pole is pointed toward the North Star.
200
What causes equinoxes?
What is the tilt of the Earth when it is Spring and Fall allow for equal amounts of daylight and darkness for those two days of the year.
300
Give the dates of the Spring and Fall Equinox. Explain the meaning of Equinox.
What is Spring: March 21st. Fall: September 21st. Equinox: daylight and darkness are equal.
300
Explain when the penny received more energy in the flashlight example.
What is when there is a 90 degree solar angle and the light has the most density.
300
Name and give the dates for the longest and shortest days of the year.
What is Longest= Summer Solstice- June 21st Shortest= Winter Solstice- December 21st
300
Would we still have seasons if the Earth was not on a tilt and instead was straight up and down?
What is No we would not have seasons because the seasons are caused by the tilt of the Earth on its axis toward the North Star at 23.5 degrees.
300
Explain the position of Earth when it is winter in the Northern Hemisphere. (What does it look like?)
What is the Northern Hemisphere is tilted away from the Sun, therefore, receiving less sunlight. The Southern Hemisphere is tilted toward the Sun giving them summer because of the direct sunlight.
400
What is beam spreading?
What is the way a light beam covers a larger area when it hits a surface at an angle.
400
Explain solar angle and give an example.
What is solar angle is the angle between the incoming rays and the surface of the land. An example would be the flashlight example. The different angles determine the beam spreading of the light.
400
Explain the position of the Earth in relation to the Sun during both the Summer and Winter Solstice.
What is Northern Hemisphere is tilted toward the Sun during the Summer receiving direct sunlight and and tilted away during the Winter receiving indirect sunlight. Answers may vary.
400
What makes the summer warmer than the winter in the Northern Hemisphere?
What is What is the summer is warmer than the winter because there is more direct sunlight on the Northern Hemisphere due to the tilt of the Earth during the revolution around the Sun.
400
How long does it take for Earth to rotate one time? How long does it take for Earth to revolve around the Sun one time?
What is Rotation: 24 hours or 1 day Revolution: 365 days or 1 year
500
Use at least 4 vocabulary words to explain the four significant stages (one occurring in each season) that we discussed in class.
What is answers may vary.
500
Relate the flashlight example to the Sun and Earth relationship.
What is answers may vary.
500
If the sunrise is at 7:24am and the sunset is at 6:54, how many hours of daylight will we have?
What is 11:30 of daylight.
500
What causes seasons? Explain.
What is Earth’s seasons are caused by the tilt of the Earth on its axis at 23.5 degrees pointing toward the North Star. As the Earth revolves around the sun we experience different seasons due to the tilt and how direct the sunlight is.
500
Is there a part of Earth that experiences only light or darkness for a period of 24 hours? (Name them)
Yes, the Arctic Circle (light) and Antarctic Circle (darkness).
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