Hypothesis of Combustion Demo: The alcohol will coat the inside of the bottle and evaporate into a gas, then when it is introduced to the flame, it will ignite and the soot will come out through the top of the bottle.
Observation: The lighter lit the alcohol and the bottle flew about 8 feet and the fire was blue and the soot was on the bottom of the bottle, but there wasn't very much of it.
Combustion: can enter the atmosphere through factories, cars, aircrafts, and aerosol cans. It sends heat back down to the Earth and heats it. The heat then goes back into the atmosphere and it is a never ending cycle that leads to the melting of glaciers other consequential effects.
CO2 Gas Demo:
Hypothesis: The fizzing acid-base chemical reaction will ignite in a rapid and hotter flame and the CO2 gas will be created.
Observation: The CO2 coated the flame and made the flame go out because a flame needs Oxygen to ignite.
Hydrogen Gas Demo:
Hypothesis: The hydrogen gas will ignite easily because the gas is alone as an acid.
Observation: The hydrogen ignited and burned off. When the hydrogen completely burned off, the flame went out. The zinc is completely dissolved and the beaker became very warm. The contents left in the beaker sizzled when the flame was introduced and continued when the flame went out.
Air Pressure
Hypothesis: The can will become heated and the water will turn into a gas. The gas will fill up the can and when the can is placed in the ice water, the gas will sizzle out of the can.
observation: The water vapor did come out the top of the can when heated, but nothing happened when the can was inserted in the water, nothing happened.
hypothesis: The water vapor will not come out the top of the can when it is inserted into the water upside down.
Observation: The gas filled can hit the water and the can squished into itself.
In the article, it says that air pressure is a major variable in climate change. Air pressure controls moisture which controls temperature, Rainfall, winds, and storminess. Over the past five decades, air pressure has risen everywhere other than the poles and the North Pacific Ocean where it has dropped. This means that the weather will change and humans all over the world will not know how to handle it. Villages that are used to a certain type of weather will suffer because of climate change.
