Combustion Demo
Hypothesis- If the rubbing alcohol covers the inside of the bottle and it is set on fire, then a flam will come out of the top of the bottle.
Observation- The bottle few across the floor at least 2 yards, and a huge blue flame came out of the bottle. The bottle went very fast across the floor.
What I learned...
- The earth has gotten hotter.
- Icecaps and glaciers are melting which causes the water levels to rise.
- There are many chemicals in the air, which have caused the atmosphere to get thinner, causing the earth to get warmer.
CO2 Gas Demo
Hypothesis- If the baking soda and the vinegar become a gas, then the mixture will catch on fire.
Observation- The carbon dioxide burned out the fire of the candle, because a flam needs oxygen to survive and the CO2 caused the fire to go out.
Hydrogen Gas Demo
Hypothesis- If the hydrogen becomes a gas and fire is introduced to it then it will catch on fire.
Observations-
- The beaker is very warm.
- The zinc was completely gone.
- The hydrogen gas did catch on fire.
