-
- author "me"
- tags ""
- description "Science, Matter, and Energy"
- fileName "Bio 9: Chapter 2"
- freezingBlueDBID -1.0
- What is sustainability?
- Meeting the needs of the present generation without compromising ability of future generations to meet their needs
-
Define carrying capacity.
The number of individuals in a system that can be supported without deleting resources.
-
What three principles does sustainability depend on?
Solar energy, biodiversity, and chemical cycling.
-
What do scientists do?
They collect data and develop theories, models, and laws about how nature works.
-
What are the 4 baisc steps of the scientific method?
Observation, hypothesis, experiment, conclusion
-
Four features of the scientific process?
Curiousity, skepticism, peer review, and reproductivity.
-
What are the important biological compounds? Give an example of each.
- Carbohydrates (bread, starch, woof)
- Proteins ( beans, meat, tofu)
- Nucleic acids ( DNA and RNA)
- Lipids (fat)
-
How can matter change?
It can change either physicall or chemically.
-
What's the law of conservation of matter?
Matter only changes from one form to another.
-
What is energy?
The capacity to do work or transfer heat.
-
What types of energy are there? Give an example of each.
- Potential energy (Gasoline, water behind a dam)
- Kinetic energy ( wind, flowing water, heat)
-
If the wavelength in light is lower, the energy is ___________.
Higher
-
What is the first law of thermodynamics?
Energy is neither created nor destroyed, so energy input = energy output.
-
What is the second law of thermodynamics?
Energy use results in lower-quality energy. (heat loss)
|
|
