Rotation/ Revolution
Constellations
Seasons
Lunar Cycle
Eclipses
100
Define rotation
The spinning of the Earth on its axis that takes 24 hours/ 1 day
100
Give an example of a circumpolar constellation (bonus points- no deductions)
Northern- Ursa Minor
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
How long is one lunar cycle?
It takes 29.5 days for the moon to go through all of its phases.
100
What is an umbra?
The smaller, more direct shadow that causes total eclipses and gets smaller as it moves away from the light source
200
Define revolution.
Revolution is the movement of the Earth around the Sun that causes years and seasons
200
Why do we see different constellations as the seasons change?
As the year goes on, the Earth revolves around the Sun. As the seasons change, the Earth views a different area of the night sky, so the seasonal constellations we view change.
200
Look at picture #1. What is the seasons in the Northern Hemisphere at Point D.
Spring.
200
What is responsible for the phases of the moon?
The positions of the Earth, Moon, and Sun.
200
What is a penumbra?
The larger, indirect shadow that gets larger as it moves away from the light source and causes partial eclipses
300
Draw the Earth rotating.
300
Give an example of a seasonal constellation (bonus points- no deductions)
(Any zodiac constellation)
300
What season is it in the Northern Hemisphere when it is spring in the Southern Hemisphere?
Fall
300
Why do we always see the same side of the moon.
The moon takes 28 days to rotate on its axis and 28 days to revolve around the Earth. As a result, we only see one side of the moon.
300
Explain how a lunar eclipse is created.
The Earth moves between the Sun and the Moon. The shadow of the Earth puts the Moon into darkness.
400
Draw a picture of the Earth revolving.
400
What is a seasonal constellation
(give location and appearance for each hemisphere)
A constellation that is only visible during certain parts of the year (can be visible during more than one season) and appears to move along the horizon of the Earth.
400
During which season has the greatest amount of daylight hours (in Northern Hemisphere)? Why are days longest then?
Day length is the longest during the summer (June 21-September21). Days are longest then because the Northern hemisphere is tilted towards the Sun.
400
Draw and label the phases of the moon from new moon to full moon and back to new moon.
400
Draw a diagram of a solar eclipse.
500
Compare the Earth and Moon's revolutions.
(Include information about what they are revolving around and how long the revolution takes.)
Earth: revolves around the Sun and it takes 365 days. Moon: revolves around the Moon and it takes about 29.5 days.
500
What is a circumpolar constellation
(give location and appearance for each hemisphere)
A circumpolar constellation is located near the North and South poles. The Northern hemisphere sees different circumpolar constellations than the Southern hemisphere.
500
If the Earth's axis was straight up and down, how would the seasons be different?
Seasons would not really exist. All areas of the Earth would have similar climates.
500
Look at the picture. What phase of the moon is it at letter T?
first quarter
(waxing- on right; waning- on left)
500
Draw a diagram of a lunar eclipse.
