I just think i should say more about global warming and its effect since it indirectly related to our topic - energy conservation.
This is how global warming could lead to a ice age.
The earth gets warmer then green house gases traps heat in the earth atmosphere. When the sun shines at the equator, where its the hottest, an ocean current brings warm water from the equator and brings north into the north hemisphere to warm up the place a little. When the warm water get too cold it flows down to the equator to 'refill' its heat and this cycle goes on the keep the earth warm. The flowing of water depends on the salt content in water and the temperature of water. It is the same concept for the south at the antarctic.
When global warming takes place, heat melts the ice caps and more fresh water(low in salt or no salt) flows into the north. When that happens the current flow is disrupted and cold water at the north is stuck at the north, so it gets colder. At the same time, water gets too warm and water expands to create floods at low land areas. Warm water also increase the chance of natural disaster like hurricanes.
When global warming takes place, heat is trap in the atmosphere and the energy trapped is used to increase the intensity of storm and hurricanes. When the ice caps melts, more area in the north will get floods.
When the north and south gets colder and colder, snow and ice will form and as snow and ice are white, they will reflect sunlight from the sun and their heat. So the coldness in the air will just keep going down and it will soon be an ice age.
Finish! So that this is an idea on what might happen.
Moving on to my reflections, the reflection is found at the grace website, lesson 3 worksheet, i guess, scroll down until you find reflections.
If you cannot find, you may follow the order.
Some questions that are still in my head:
Still in what ways when there is a hot/cold weather, people will use more electricity?
About how much percent the increase of electricity consumption during the cold period(nov,dec,jan) or the hot periods(jun,july)?
3 things i learned:
If you on a normal air condition for 1 night (8 hours), it will cost S$1.20+.
When you use a fan for 8 hours, it will cost less than 30 cents.
We need to work as a team in order to do things better.
Things that i agree with:
We need to stay back after school or at recess to do more findings and research for the project.
IPW is counted in the marks system! Work hard
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Some ideas that you people can put in your post:
Ways to conserve energy
Add on to the list on how people will use more energy on a hot/cold day
etc
One last thing
*****Find a day to stay back or at recess to complete the project proposal, its in the lesson 3 worksheet, we need to complete by next IPW lesson, on next Thursdays.*****
GOOD LUCK PEOPLES.
Tay Zhi Ming (32)
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