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Science Terms
Moon and sun terms
Question | Answer |
---|---|
What motion results in the day/night cycle on earth | Earth rotation |
Differentiate between 1 earth rotation and 1 earth revolution | Rotation is one day and Revolution is one year |
What is the time for 1 earth rotation | 24 hours |
What happens to the position of the sun in the sky over one earth rotation | Rises in the east and sets in the west |
What direction will a shadow fall in Wisconsin | Before noon: West At noon: North After Noon: East |
What is the direction of earths rotation | Counter Clockwise |
If earths rotation was reversed what would change about the position of the sun in the sky over 1 earth rotation | West to East |
How many earths rotations occur in one revolution | 365.25 |
Explain why every 4th calender year has an extra day | The .25 adds up to one whole day |
Describe the shape of earths orbit | oliptical |
On what day is the earth closest to the sun | December 21st |
On what day of the year is the earth furthest from the sun | June 21st |
What is the average distance between earth and the sun in kilometers | 147,200,000 |
What causes the tilt of the seasons | The tilt of the earths axis |
How does the angle of sunlight affect temperature | More rays directed at the earth |
Describe how the the tilt of the earth changes over the 4 seasons | The northern hemisphere is tilted at the sun in June and the southern hemisphere is tilted at the sun in December |
Compare the length of daylight and night over the 4 seasons in the northern hemisphere and the southern hemisphere | Summer=Long Winter=shorter Spring/autumn= same |
Vernal equinox | March 21st-June 21st=tropic of cancer |
Autumnal Equinox | September 21st-December 21st=tropic of Capricorn |
Summer solstice | June 21st-march 21st= Tropic of Capricorn |
Winter solstice | December 21st-September 21st= tropic of cancer |
What percent of the moon is always lit at any phase | 50% |
what is the source of the moon's illumination | sun |
does the moon usually rise as the sun sets | yes |
What are extreme tides | Extreme rising and falling of tides |
What motion causes the tides on earth | moon |
When are extreme tides high or low | full and new moon |