Energy Consumption Page 209

Q: What are some ways electricity can be used?

A: Transportation, Heat, Recreation

Q: What are some uses for hydrogen fuel cells?

A: Transportation, Heat, As a Battery

Q: What are some pros and cons to storing energy as hydrogen? In batteries? In flywheels?

A:
Pros for hydrogen-

• High energy density
• Can be produced from any electrical source
• Water is very easily available
• Don't store a fixed amount of energy

Cons for hydrogen-

• Must be handled carefully
• Very inefficient 
• Will create environmental problems

Pros for batteries-

• Store a fixed amount
• Can range in size
• Stable
• Can hold charge for an extended period

Cons for batteries-

• Expensive to build
• Expensive to maintain
• Contain dangerous chemicals
• Will create environmental problems

Energy Consumption Page 205 Questions

Q: How can the same energy sources be provided with less energy for lighting? For transportation?

A:  Certain things take less energy to work than others.

Q: When does conservation reduce quality of life? Improve quality of life?

A: Conservation reduces quality of life because you have to make sacrifices and use less energy, but it improves quality of life when you have more money to do other things because you spend less on quality.

Energy Consumption Questions Page 198

Q: How does the concentration of energy in a source affect how people can use energy?

A: It causes better development of an energy source, and it also causes people to not use new energy sources.

Q: How do the United States, China, and Kenya compare in total energy consumption? In per capita energy consumption?  

A: The United States consumes more energy than China, despite being only 23.588335726% of China's population.

Final Project Link

http://globalwarmingpotuselection2016.weebly.com/

Interactive Ecology Lab

Incandescents v. CFLs

Alessandro: I'm telling you we should by the CFLs.

Judy: I don't want mercury poisoning.

Alessandro: I don't want to damage the environment.

Judy: Well if you buy a CFL you are.

Enter Person #1

Person 1: You two are both wrong.

Alessandro and Judy: Huh?

Person 1: Both lightbulbs are terrible, the truth is that LED lightbulbs are the best. LEDs are more energy efficient, they won't give you mercury poisoning, and they give off very little heat.

Alessandro: I'm in.

Judy Me too.

Human Survivorship Curve

For this lab I examined the change is human survivorship over the past 200 years. I went to a local cemetery to get all of my data, which included the age of death for 25 men and women that died before 1900 and the age of death for 25 men and women that died after 2000. I plotted the data into four line graphs. I also found a life expectancy chart.