Gases and Climate Change

Combustion- If we light the rubbing alcohol on fire, then it will combust, because the alcohol is flammable.

Oh My Gosh!!!! That was crazy!!!!!! There was an explosion and the fire was blue and Oh My Gosh!

A rise in gases contributes to an excessive greenhouse effect, warming the Earth in the process.


CO2 Gas- If the CO2 is exposed to a flame, then it will combust, because it is also flammable.

The gas immediately extinguished the fire. There was no oxygen to keep the fire alive.

CO2 is necessary for human's life on Earth, but in extreme quantities it can become toxic. Deforestation and burning of fossil fuels release carbon dioxide into the environment.


Hydrogen Gas- If hydrogen is exposed to a flame, then the flame will be extinguished, because there isn no oxygen.

The zinc caused a bubbling as it separated the hydrochloric acid, and then the hydrogen caught on fire and was crackling and popping.

Ocean power and Hydroelectric power involves electricity created by tidal movements. Hydrogen fuel involves storing energy. Biofuels, such as ethanol, are created from crops, but take more fossil fuels to create than you would use without them. Solar energy takes energy from sunlight. Wind power is generated by wind, and is growing quickly. Geothermal energy is created by the heat in the Earth's core. Fossil fuels, such as oil, are burned remains of animals and other fossils.

Air Pressure- if the can is put in ice water, then it will explode.

Literally nothing happened.

Hypothesis for the second test: if we put the can upside down into the ice bath, then the ice water will bubble, because the vapor will try to escape.

The can condensed itself. The metal actually folded itself.

Chernobyl's effects linger on summary and questions

http://news.bbc.co.uk/2/hi/science/nature/743879.stm

The radiation poisoning from the Chernobyl disaster are not disappearing as quickly as anticipated. Some food restrictions will have to stay in place for 50 years or more. The levels of caesium in the UK were higher than expected. Cumbrian sheep, among other animals, are still contaminated.

Q1. Name 3 items that will be restricted from Russia for the next 50 years.

Q2. How much of an increase was found in the half life of the chemical caesium?

Q3. Describe the change pattern in radioactivity regarding food and water.