This week Answer the following questions in detailed, complete sentences.  These come right from the Study Island lesson.
  1. Why is a year 365 days?
  2. What effect does the moon have on ocean tides?
  3. Why do we have night and day? 
  4. What causes us to have seasons?
  5. Name the 4 phases of the moon.
Please number each answer and submit them in the comment section.

Thanks,
Mr. Reese
 


Comments

tesha s.
02/13/2012 2:53pm

1. There is 365 days in a year because that is how long it takes for the Earth to rotate around the Sun.

2. The moon effects the ocean tides because of it's gravitational pull. Though the Sun id bigger than the Moon the moon has more gravitational pull because it is closer to the Earth than the sun is

3. It is day-time when one part of the Earth is rotated toward the Sun. When the same part of Earth is rotated away from the Sun, it is nighttime.

4.The four phases of the moon- Waxing, Waning, Gibbous, New Moon.

Reply
Kathrine E.
02/14/2012 5:19pm

1.That's the length of time it takes the earth to complete one orbital revolution
around the sun. That period of revolution is also connected ... for reasons perhaps
too complex to discuss just now ... to the period of a complete cycle of seasons.
It's actually closer to 365 and 1/4 days long (hence the leap year).
2.is it just the melucler pulling of the moon?
3.The earth constantly spins on its axis. So,the other half of the earth is facing the sun , the other side is not. This is how we have night and day. It also matters on your time zone. The earth has 24 time zones. Some will be at night and some will be at day.
4.The Earth is tilted on its axis. 'Summer' (the warmest season) occurs when a hemisphere, either the northern hemisphere or the southern hemisphere, is tilted towards the Sun and thus receives more direct sunlight (the Sun is closer to the zenith and is above the horizon longer). A common misconception is that the seasons have to do with the Earth being closer to the Sun due to the elliptical nature of its orbit. The orbit is elliptical and the Earth is closest to the Sun [aphelion] in early January, farthest away [perihelion] in early July) this has a minor effect on the seasons, more important is the number of days and weeks the Sun is higher in the sky; near perihelion for the northern hemisphere (although the Sun is further away) the atmosphere has the opportunity to heat up more.

Twice during the year (spring and fall Equinox - around the 20th of March and September respectively), the Sun appears to circle more directly over the equator [the axis of the Earth is in a plane perpendicular to the orbit], and most areas of the globe receive similar amounts of daylight (the poles are exceptions with extremely long periods of the sun either above or below the horizon. From late December to late March, the Southern Hemisphere experiences 'summer' while the Northern Hemisphere experiences 'winter'. From late June to late September, the position is the other extreme, and it is summer in the Northern Hemisphere, winter in the Southern.

These yearly changes in insolation (incoming energy from the Sun) cause the seasons, in conjunction with the prevailing directional wind patterns, ocean areas, currents, and pressure systems which all affect the local climate.
5.Here it is in order:
1. New moon
Waxing Crescent
2. 1st Quarter
Waxing Gibbous
3. Full
Waning Gibbous
4. 3rd Quarter
Waning Crescent


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