LISTS OF STUDENT INVESTIGATIONS

1. New World View

p. 8, Create Your Own Ecosystem
p. 21, Tree Impact study
p. 49, Analyze your own ecosystem

2. Climate Change

p. 8, How has the debate changed in the past 10 years?
p. 11, Caption Writers
p. 30, Two prisms
p. 32, Infrared energy and your TV
p. 33, Why do some molecules absorb infrared energy?
p. 37, Getting a piano to sing to you
p. 44, Sampling carbon dioxide
p. 48, The findings from Mauna Loa -- Carbon dioxide in the northern hemisphere
p. 54, What are the human-caused sources of carbon

3. Life and Climate

p. 5, Can you observe the effects of air pressure?
p. 7, A scale drawing of our planet
p. 11, Timeline
p. 21, Simulating half-life decay with pennies
p. 41, Observing connection currents
p. 56, Dissolving rocks
p. 95, How did the Eskimos survive?
p. 104, Timeline

4. Ozone

p. 11, Spectrum of the sun
p. 18, Just how fast is melanoma increasing?
p. 22, Sunscreens and clothing
p. 25, Sunglasses and UV protection
p. 30, The effect of UV on plants
p. 52, Ozone monitoring
p. 67, Ozone measuring
p. 87, Measuring lung capacity

5. Losing Biodiversity

p. 5, Biodiversity assessment
p. 13, Estimate the number of bison killed
p. 16, Graph the population of the buffalo
p. 18, Biodiversity issues
p. 25, Simulate natural selection with "beetles"
p. 28, Ideas for research projects
p. 32, Hybrid cross coin toss
p. 45, Comparing soils
p. 65, Product research

6. Energy Flow

p. 27, Observing convection currents and plumes
p. 48, Experimenting with Equilibrium
p. 50, Heat Trappers, Inc.
p. 62, Pencil model of sunlight beams

7. Ecosystem Change

p. 12, Make a model ecosystem
p. 41, Mapping future wetlands
p. 51, Decomposition in a bag
p. 59, How do cultures affect ecosystems
p. 61, Environmental savings for recycling

8. Population Growth

p. 5, Population growth behavior
p. 7, Alien invaders
p. 8, Making graphic representations of population behavior
p. 9, Human thermostat
p. 14, How many is a billion?
p. 14, Bacterial growth and populations
p. 15, What do you mean? It's only a drop in the bucket!
p. 16, Adding armadillos
p. 18, Grasshopper mark and recapture
p. 21, Moldy bread
p. 22, Verhulst's population equation
p. 24, Playing with the population equation
p. 25, Optimum number of offspring
p. 26, Advantages and disadvantages of sexual reproduction
p. 28, Research on the internet
p. 30, Earlobes: A study of human gene Frequencies
p. 32, Dunkers blood types
p. 32, Health care and population growth
p. 45, Doubling time
p. 45, Too many people?
p. 47, Population growht in the united states
p. 57, How much land does it take?
p. 70, The cost of an afternoon's entertainment
p. 80, Has china realized its goals?
p. 86, Population control - cultural comparisons
p. 89, Difficult questions
p. 97, The quality of your life
p. 100, The road not taken

9. Energy Use

p. 5, Recent history of energy use
p. 6, Doing work to create electricity
p. 10, Using electricity to do work
p. 14, Energy transformations
p. 25, How much energy?
p. 39, Home heating dilemma
p. 40, The future of electric power production
p. 52, Fuses and circuit breakers
p. 65, Electric metering
p. 66, What are we paying for?
p. 67, Power failure
p. 69, Comparing light sources
p. 73, Method 1: Life cycle cost
p. 77, How does the Thermos (tm) bottle know?
p. 78, Computer the R-Value of a material
p. 83, Refrigerators
p. 86, Exploring a refrigerator
p. 91, Automobile energy transformations
p. 98, Better batteries
p. 103, Energy from sunshine
p. 105, Payback time
p. 106, Your vote on energy measures

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