Earth in Space Exam

Our Earth is just a small small object floating in around in the nothingness of space. The Earth is in our solar system along with the sun and all the other planets and moons. Our solar system is located within the Milky Way Galaxy. We are in the disk of the Milky Way Galaxy that holds most of the galaxy's’ dusts and gases.(1) Our galaxy is a spiral galaxy.(2) Spiral galaxies tend to spin in a circle, like a spiral, hence their name. The Milky Way Galaxy is one of the stereotypical spiral galaxies, or in other words, we spin.(3) Our universe is about 13.75 billion years old. It has no real structure. Everything is basically where it ended up with no real rhyme or reason why it happened the way it did. “Using entire galaxies as lenses to look at other galaxies, researchers have a newly precise way to measure the size and age of the universe and how rapidly it is expanding, on par with other techniques.” (4) This measurement is called the Hubble Constant. It explains the size, or overall scale, of the entire universe.

Our universe is expanding. It has been expanding since the very beginning of its existence, about 14 billion years ago.(5) This is all explained in our theory, The Big Bang Theory. We know that the universe is expanding because of other galaxies that we have been watching for hundreds of years. These other galaxies are all expanding and moving apart from each other at a constant rate. The expansion first started with a big hot explosion of all of space, which was originally completely filled with matter. This explosion split apart all of the matter that was in the universe at the time and made it into the planets, moons, stars and galaxies that we have today. (5) All of this matter is still moving through space, expanding farther and farther out.(6) This matter eventually clumped together and formed the solar systems,  stars, and galaxies that we have today.

The cosmic microwave has helped determine the age of the universe because it has shown us how long it takes for one microwave to pass. The other waves pass through and now that we know how long it took for the universe to get to where it is currently we can tell how long it will take us to keeep expanding. And also I am sorry Mrs. Grivins, i got it in as soon as i got home and decided that i just needed to get it in so I don't think it is completly finished.

http://ssscott.tripod.com/BigBang.html

http://thescientificworldview.blogspot.com/2011/07/elderly-galaxies-plague-big-bang-theory.html

http://www.windows2universe.org/headline_universe/hubble_constant.html

Bib:

1)`"The Location of the Solar System in the Milky Way Galaxy." Astrodigital: Home of Explore Mars, Space Exploration, Astronomical Adventures, Digital Excursions, and the Chicago Area Chapters of the National Space Society and Mars Society. Web. 21 Nov. 2011. <http://www.astrodigital.org/astronomy/solarsystemgalaxy.html>.

 

2) "The Milky Way Galaxy." Main Page - CASS. Web. 21 Nov. 2011. <http://casswww.ucsd.edu/archive/public/tutorial/MW.html>.

 

3)"Galactic Lenses Confirm Universe’s Age, Size | Space.com." Space, NASA Information & News | Outer Space Flight Videos & Pictures | Astronomy, Solar System Images | Space.com. Web. 21 Nov. 2011. <http://www.space.com/7989-galactic-lenses-confirm-universes-age-size.html>.

 

4)"Astronomically Large Lenses Measure the Age and Size of the Universe." Science Daily: News & Articles in Science, Health, Environment & Technology. Web. 21 Nov. 2011. <http://www.sciencedaily.com/releases/2010/03/100301122334.htm>.

 

5)"The Big Bang and the Expansion of the Universe." An Atlas of The Universe. Web. 21 Nov. 2011. <http://www.atlasoftheuniverse.com/bigbang.html>.

 

6)"Origins of the Universe, Big Bang Theory Information, Big Bang Facts, News, Photos -- National Geographic." Science and Space Facts, Science and Space, Human Body, Health, Earth, Human Disease - National Geographic. Web. 21 Nov. 2011. <http://science.nationalgeographic.com/science/space/universe/origins-universe-article/>.

Water Cycle EXAM

1. The water cycle is a very complex cycle that happens throughout the whole world. Many things happen throughout the water cycle such as: evaporation, transpiration, condensation, precipitation, infiltration, surface runoff, groundwater, and absorption. Evaporation is when water molecules heat up and transform into their gaseous state.(1) When evaporation takes place, condensation can happen. This is when things, such as a cold glass of tea, are sitting out and the water molecules become drawn to the glass. They then “stick” to the sides of the glass and form water droplets. When water evaporates it goes up into the sky to form clouds. During evaporation, if enough water gets into the atmosphere, clouds can form. Once these clouds get big enough and can’t hold anymore water, they release precipitation.(2) Precipitation is all forms of water that fall from the sky such as: rain, snow, sleet and hail. Precipitation then hits the ground and becomes either surface runoff, groundwater, or absorbs into the earth. If it is absorbed into the earth, trees can take the water up through their roots. The water that the trees don’t use goes through transpiration. Transpiration is just like evaporation except it is through the leaves of trees. The trees let all extra water through their leaves and into the atmosphere.
2. Water flows through the watershed and goes through all of your conceivable places to get to where it is located today. (3)Water in streams generally tends to flow into rivers or ponds. The rivers flow straight into the lakes and wetlands that we have today. The lakes and wet lands are directly connected through the bottom of their ground in the lake to the ground water system.(4)Ground water flows directly into and out of the lakes and wetlands.
3. Rivers and streams are both usually very shallow and have clearly defined banks. There are many different parts of rivers and streams such as: the mouth the bedrock and the bank.(2)The mouth of the river or stream is where the water empties into a bigger water basin such as a pond or a lake. The bedrock is is all of the rocks at the bottom that either stay in place or drift along.(3) Thesmaller rocks usually are the ones that drift along and erode the bigger rocks. Rivers and streams often times flood due to precipitation.

http://www.enchantedlearning.com/subjects/astronomy/planets/earth/Watercycle.shtml

http://www.sperchemical.com/html/minerals_in_water.html

http://www.limpoporak.com/en/river/hydrology/principles+of+hydrology/surface+water/stream+order.aspx?print=1

Bib:

1. "Source of Minerals in Municipal Water Supplies." SPER Chemical - Quality Water Treatment Sequester Minerals, Corrosion Control. Web. 22 Nov. 2011. http://www.sperchemical.com/html/minerals_in_water.html.
2. "Rivers and Streams, from USGS Water Science for Schools." USGS Georgia Water Science Center - Home Page. Web. 22 Nov. 2011. http://ga.water.usgs.gov/edu/earthrivers.html.
3. "How a River Flows." Stream Biology and Ecology. Web. 22 Nov. 2011. http://chamisa.freeshell.org/flow.htm.
4. "Water Cycle - Animated Diagram." Earthguide: Educational Resources in Earth, Marine, Environmental and Planetary Sciences. Web. 22 Nov. 2011. http://earthguide.ucsd.edu/earthguide/diagrams/watercycle/.
5.  

EXAM: Water Cycle

a) The water cycle is a very complex process. Within it is: evaporation, transpiration, condensation, precipitation, infiltration, surface runo