The Green House Effect

I think that the Green House Effect is perfect Even though Green House gases make up 1 percent of the world's atmosphere it is still effective, this effect regulates our tempretures. effect The Green House effect is half good because it absorbs infrared rays that comes from the atmosphere. Water vapor, carbon dioxide, ozone and methane, which makes it slower for it to escape from the atmosphere. Without the Green House Effect the Earth will be 54 degrees colder in farenheight, way too cold to hold out ecosystem together. This effect is also good because without it, the Earth would be hit with many unwanted things from space.

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Popcorn Assignment

Radiation is the only way heat can move through relative empty space. Other ways of heat needs molecules to move like air or water to move the heat. Most of the radiation comes from the Sun, good absorbers of radiation are good radiators also. The door to a microwave is made especially made so that it can reflect micro waves so that they cant escape. Metal surfaces reflect microwaves and the little mesh holes lets you look at your food while its cooking kind of like a mirror for microwaves. Currents that are electric flow through the mesh made of metal as the microwaves hit it and those currents bounce off and reflect in a different direction. Since the holes aren't big enough to interrupt the current flow, the mesh reflects the microwaves as good as a solid metal surface would.

Interactive

I learned a lot from this interactive website, a few things I learned about are carbon dioxide, oxygen, and the ozone layer. Here are a few facts i learned from this website. Carbon Dioxide makes up 1% of the Earth's atmosphere. This substance retains heat from the sun that escapes to the Earth. Solar energy bounces from the Earth to the Green House gasses and back down to Earth. Carbon Dioxide comes from volcanoes, automobile exhausts, power plants, decaying plants and animals and factories. When we burn fuel it lets out carbon dioxide. Mars and Venus have a lot of carbon dioxide on their planets.
4.6 billion years ago, the Earth had no oxygen, the Sun's ultraviolet radiation broke down molecules of water. The oxygen now comes from photosynthesis, meaning green plants use sun energy to change carbon dioxide and water into sugar and oxygen.
Oxygen gas accumulated in our atmosphere. Ozone (3 atoms of oxygen) was made in the stratosphere. Ozone is a shield to the Sun's ultraviolet radiation, living things could go from ocean to land. Chemical in aerosol sprays and refrigerants thinned ozone in the stratosphere in 1980. Mostly in Antarctica. UV radiation could go to Earth because of this. When these chemicals was banned, the hole grew no more. The hole is not expected to close in 40 to 50 years. Surface ozone can burn lungs of people and kids are the mostly affected by this.

The Collapsing Can

The water boiled in the can, when the water touched the front of the can it sizzled because of the heat of the can. As the can indented little by little, steam came out, the molecules in the water was vibrating because the water was bubbling violently. When there was enough steam we removed the can from the heat and dumped it in a bowl of iced water and it collapsed immediately. The vapor from the hot water pushed all the air out the can. When the can was filled with vapor, we cooled it fast by putting it in the water. Making the can cool caused the vapor in the can to condense leaving the can with nothing. When the can had nothing inside, the air pressure outside the can made it collapse.