How do i make the best green house effect project in a plastic 2 liter bottle?

Question

this is for my physics class and soo far i have though of putting sand in the bottom with glass and then a mirror and putting a magnifying glass obove it so the heat can refelct and then a screen on the outsude to trap it and foil balls on the inside. So help me out yall!

Answer 1

The effect depends on the ability of things inside to absorb heat instead of relect it back or pass it though. So, you want to use dark sand. Also make sure the contents are sealed off, so no heat escapes by convection.

Answer 2

If By Greenhouse Effect, An Experiment To Show How Greenhouse Gases Are Poisoning The Atmosphere And Creating Temperature Fluctuations Effecting The Seasons?
I Guess You Would Need Some Chemicals In The Bottle To Emmit The Gasses Causing The Effect ie CO2, S, CO etc. A Botanical Shrub Or Alpine Plant To Absorb Some Of the CO2 And A Way Of Measuring The O2 Produced Plus The Gasses Emitted And The Effect On The Plant. Not Exactly Rocket Science But A Challenging Project All The Same.
I Know That In This Day And Age Of The www And Information Super Highway This May Sound A Bit Radical A Suggestion But Have You Ever Thought Of Hitting The Books And Thinking Outside The Box. I Find That To Google Is All Well And Good But To Einstein "Do It Old School" Has Far More Rewarding results Than Trying To Find The Answers In Cyber Space GREENPEACE Rox Big Time.
Enjoy Your Answers And Good Luck My Friend.
I'm A Chef I Do It Old School And Think Outside The Box For A Living!

Answer 3

Just what are you trying to explain or discover with this experiment?

The "greenhouse effect" for actual greenhouses primarily has to do with the lack of air movement. This could be studied my making bottles with various sized holes (from none at all to a few tiny holes to the entire top missing. Presumably the less open, the warmer it will get.

The "greenhouse effect" for the earth is different. It has to do primarily with the atmosphere being transparent to visible light (coming in from the sun) but not transparent to infrared light (trying to leave from the surface of the warm earth).

For this you could try filling bottles with different gases. Nitrogen is not a greenhouse gas. CO2 is a moderate greenhouse gas. Methane is a stronger greenhouse gas. however, I doubt that the sizes of a 2 liter bottle are enough for any of these to absorb much infrared. Also, other differences (like the insulating properties of the different gases) might mask any small "greenhouse effect" generated in the bottles.

Answer 4

Did you learn what a greenhouse is? Your shield (here, the plastic bottle) allows visible electromagnetic radiation from the sun to enter. It is absorbed inside, and re-radiated in the infrared spectrum. The shield is opaque to infrared, so the heat stays inside. So you want all the light entering the bottle to land on something black in the visible spectrum. To demonstrate the effect, put a thermometer inside and another outside.

Answer 5

There's a good experimental set up on this site - complete with instructions and diagrams.

http://www.ucar.edu/learn/1_3_2_13t.htm