Water Cycle Activity

1.What is the water cycle?
1.A : A process that lets water move through the enviroment in a continus cylcle.

2.Does the water cycle have a beginning or end?
2.A: No becuze it is a cycle of evaporation condensation and precipatiation so it does not have a begining or end.

3.Starting with a puddle on a sunny day, describe how water might move through the water cycle and eventually fall back as rain.
3.A: The puddle is made out of water. When the suns heat heates it it changes state and evaporates. Then the water vapor rises and cools into water droplets and makes clouds. Then the water eventualy becomes heavey and falls out of the sky in the form of precipatation. The water then collects and the cycle begins again.

solar power

Annotated bibliogrphy

1. http://www.sciam.com/article.cfm?id=how-does-solar-power-work

1b.The u.s doesn't us every much solar power compared to the rest of the world. Solar panels are made of silicone. silicone can hold an electrical charge well

2.http://www.howissolarenergyused.com/

2b.The sun is a main part of our life and becoming a bigger part.Solar panels use some different types of mechanics to turn the suns heat into electricity.

3.http://www.wisegeek.com/how-do-solar-panels-work.htm

3b. Solar panels are made of the same stuff as computers pure silicone. pure silicone can hold a charge better than other materials.

4.http://powergeneration.in/solar.html

4b.Solar power has a big patently for being a main energy source.Solar power has Few limitations and is very reliable.It has barley any environmental impact.

Group # 1 Soslar power

Essential questions

1. What, specifically about your topic, are you going to research?
1.a I will research How the energy is harvested and how solar panels work.
2.What conclusions did you come to? What do you recommend average citizens do to make a difference?
2.b solar pannels are made out of pure silicone turned into small Cristal's mixed with other elements to create a positive and negative charge. A small amount of the worlds energy comes from solar energy. How we could make a difference is use these wonderful devises. They never stop working as long as there is sun light. First solar power is collected by solar pannels then sent to a charge controller then to a converter that changes it from dc to ac current. solar pannels are like magnifying glasses because they focus the energy.
3
What would happen if, worst-case scenario, nobody listened to your recommendations?
3b. The world would run out of coal to make electricity and we would not have electricity topower our earth and we would go back to medieva way of life.
4What would happen if, best-case scenario, everybody listened to your recommendations
4b. we would always have a renewable sorce of energy because if the sun goes out we would die any way.

Observing waters properties on a penny

A couple days ago in science class we did an experiment observing waters properties by observing how much water could fit on a penny. We used a medicine droper, a penny, and water. My first prediction was 7 dropes. The actual number was 16. My second prediction was 17. This time i went slow and i got a total of 28! What makes makes so muchg water be able to fit on such a small area is water has a high surface tension. That means water will stick together stronger then other liquids. Overall this was a fun experement.

Picture link: http://www.istockphoto.com/file_thumbview_approve/376428/2/istockphoto_376428_water_on_a_penny.jpg

larry poster