Wednesday, February 1, 2017
MY Goal next year
This year I learn many subjects in Add science. In add science we learn many things and go to lab. In lab is very fun activities. Next year I want to get better grade and better score for add science and other subjects
I want to take a test outside more.
Wednesday, January 18, 2017
Wednesday, January 11, 2017
1. If the height of the ramp is high the ball will bounce and slow the speed of the ball, but if the height of the ramp is 0 the ball speed will be slower.
2. 20 height of the ramp is the height of the ramp make the fastest, because the lower of ramp height.
3. The ball is not travel in straight line because these factor:
- The slope of the room
- when the ball bounce to the floor
Thursday, November 3, 2016
Causes: Acid rain is caused by a chemical reaction that begins when Rotting vegetation and erupting volcanoes release some chemicals that can cause acid rain, but most acid rain falls because of human activities. The biggest culprit is the burning of fossil fuels by coal-burning power plants, factories, and automobiles released compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.
Effect:Acid rain has many ecological effects, but none is greater than its impact on lakes, streams, wetlands, and other aquatic environments. Acid rain makes waters acidic and causes them to absorb the aluminum that makes its way from soil into lakes and streams.Some species can tolerate acidic waters better than others. However, in an interconnected ecosystem, what impacts some species eventually impacts many more throughout the food chain—including non-aquatic species such as birds.
Acid rain also damages forests, especially those at higher elevations. It robs the soil of essential nutrients and releases aluminum in the soil, which makes it hard for trees to take up water. Trees' leaves and needles are also harmed by acids.
The effects of acid rain, combined with other environmental stressors, leave trees and plants less able to withstand cold temperatures, insects, and disease. The pollutants may also inhibit trees' ability to reproduce. Some soils are better able to neutralize acids than others. In areas where the soil's "buffering capacity" is low, the harmful effects of acid rain are much greater.
It can damaged important building to like taj mahal because it make from marbles so the acid rain burn the marble.
Cure: The only way to fight acid rain is by curbing the release of the pollutants that cause it. This means burning fewer fossil fuels. Many governments have tried to curb emissions by cleaning up industry smokestacks and promoting alternative fuel sources. These efforts have met with mixed results. But even if acid rain could be stopped today, it would still take many years for its harmful effects to disappear.
information from: National Geographic
Wednesday, August 31, 2016
Wednesday, August 24, 2016
My group: Fook ,Ohm ,Mimi
Fook work on: formatting and picture and names.
Ohm or me work on: information
Mimi work on:A little formatting very little.
My group Fook plan almost every thing, First Mimi want to do the group project in Canvas but Fook and me think that do in google docs will be easier. Then Mimi don't do any thing Mimi open canvas only time that Fook and me tell Mimi to close and help group so Mimi don't close canvas but open group work but don't do the work.
I think advantage of Fook is formatting and planning.
I think cons of Fook is not have.
I think advantage of Mimi is like decorating.
I think cons of Mimi too decorating then it sloppy.