Science spring break

Our Milky way galaxy is spiral shaped. Our solar system is located near the outside edge of the milky way far from the center. A comet is a chunk of rock and ice [dirty snowball] which orbits the sun like a planet. Its tail is made when the sun melts the ice and is released into space. Sometimes, the Earth can move into the debris and particles left by a comet. This is what forms shooting stars. Comets come from the Kuiper belt and Oort Cloud located beyond our ss
One year=1 revolution of the Earth around the sun is 365 days. One day is 1 rotation of the Earth on its axis[24 hrs]. During the spring and fall equinoxes, Around March 21 and September 21, there is an equal amount of daylight and darkness. A meteor [the light produced by the burning of a meteoroid] happens because of the friction of the Earths atmosphere making the meteoroid burn up. when this strikes earths surface, it is then called a meteorite.
Solstices which occur around June 21 and December 21 are the longest and shortest days of the year. Objects appear to have moved in the sky at night because the Earth is rotating on its axis and revolving around the sun. They can be seen and collected. Antarctica is a good place to find them. When the Earth, moon, and sun are aligned in orbit, very high tides can occur. When this happens, the high tides can become spring tides.
For a solar eclipse to occur the moon has to be positioned between the sun and the Earth. For a lunar eclipse to occur, the Earth has to be positioned between the sun and the moon. Shadows from the Earth and the moon cause eclipses. When the Sun, moon, and earth form a 90* angle, these tides are called neap tides. In this situation, the tides will be lower than usual. The Apollo space program was the one that actually reached the moon.
Mars, the last of the inner planets, has a rust colored surface, polar ice caps, large volcanoes, and channels that allow water to flow on its surface at one time. Also, the inner planets (Mercury, Venus, Earth, Mars) are mostly solid. The closer an object moves towards a star or planet, the greater effect that planets or stars gravity will have on that object. The magnitude of a star has to do with the stars brightness. Apparent magnitude is how the star looks like from Earth.
They are denser than the outer planets. The outer planets (Jupiter, Saturn, Uranus, Neptune) are mostly gasses. Pluto, the dwarf planet, is mostly frozen and rocky. Pluto isn't classified as a planet because of its characteristics. Absolute magnitude is how bright the star actually is. The temperature of the star and how far away it is from Earth can effect how bright it appears. Our sun is a medium sized star. It is also located on the H-R diagram.
It takes approximately 28 days for the moon to revolve around Earth. During this time, the moon will go through all of the phases. The Big Bang Theory of how the Universe was created states that the universe began as a point of energy and matter. Stars that have red and orange looking colors are actually cooler than stars that are white and blue. A light year is the distance light can travel in a year. It is used to measure extreme distances in space.
This energy and matter exploded which formed the universe. The seasons, [Winter, Spring, Summer, and Fall], occur because of the tilt of the Earths axis. It is tilted at 23 and 1/4 degrees. Nova's and supernovas are exploding stars in space. Quasars are star like objects, however, they are brighter than stars and considered to be luminous objects in space. Pulsars are stars that pulsate, dimming and becoming brighter as it pulsates.
If the axis were completely vertical [90*], then all the seasons would be the same. We have day and night on Earth because it rotates on its axis. One rotation is about 24 hours. Objects "float" in space because Earths gravity affects objects less. The electromagnetic spectrum is the arrangement of electromagnetic waves: radio waves, x-rays, microwaves. There are 2 types of telescopes that use visible light: Reflecting and Refracting.
and less the farther the object is from the Earth. Gravity holds all of the objects in the solar system in place. The moon appears to change shape because it revolves around the Earth. The Moons actual shadow causes the phases of the moon.
The moon can be waxing [gaining lighted area], or waning, [loosing lighted area] during the month. It can also be shaped as a crescent or gibbous. Two things that affect the appearance of a shadow are the position of the light source,
and the position of the object itself. The asteroid belt is located between Mars and Jupiter. It separates the inner planets from the outer planets. The three types of galaxies are irregular: no definite shape, elliptical: oval shaped and spiral:frisbee