BC: picture websites www.kevindrane.com www.envis.maharashtra.gov www.greenexpander.com www.outdoors.webshots.com www.jacksonbottom.org www.thebestpath.net www.bhawkindustries.com information websites www.phillyrivercast.org www.greenfacts.org www.geography.about.com www.kidsgeo.com
FC: Water! Water! Water! When and how does bodies of water change? Well lets find out!
1: animals? Storms? | pollution? | What causes our local bodies of water to change over time?
2: Bodies of water change over time because of erosion, pollution, and human impacts.
3: acid rain plays a big part in polluting the water. factories are the main source for acid rain. it releases chemicals into the air and then precipitates into lakes and rivers.
4: Humans have a big impact in polluting water too. Having big parties on the lake or on the river bank leads to trash in the water. Trash could strangle fish and ducks and it makes the water un- clean.
5: Humans can control factory pollution. most will refuse to do so because they are too greedy. they would rather make money for themselves than save a few animals and our main reservoirs.
6: acid rain and some pollution are mainly caused by humans. humans are not always to blame when bodies of water are trashed up. natural disasters can damage water too. when big storms hit or hurricanes occur a lot of debree end up in lakes, rivers, and streams. rain from storms can turn into acid rain and fall into bodies of water also.
7: all of these things; human impacts, natural disasters, are what causes local bodies of water to change over time. a lot of acid rain wears down a river bank and makes it wider and create bends. lakes become bigger and islands can form in the middle of a lake.
8: stream studies can be performed to determine how bodies of water have changed
9: The island in this lake most likely wasn't here when the lake was first created. Over time the island formed from natural causes.
13: acid rain is the main source for pollution. pollution changes bodies of water over time. when a lot of acid rain is distributed into lakes the pH level changes. when the pH level drops below 4.8 in a lake plants and animals are in risk of death.
16: July 14th
17: Erosion has a big effect on lake banks and river beds. erosion wears down the banks and beds and causes lakes to get bigger and rivers get wider. rivers also get more bends when erosion occurs.
19: "A perfect summer day is when the sun is shining, the breeze is blowing, the birds are singing, and the lawn mower is broken" - James Dent