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The universe is made of -


Energy can be classified as either _____ or _____ energy.

kinetic or potential

energy stored in chemicals such as food and fuel is called _____ energy?


one example of a unit of energy is -


entropy is a measure of the degree of _____ in system.


which of the following represents an abiotic component of a forest community?

water trickling along a small stream

in a chemical reaction -

atoms are rearranged to form different kinds of matter

take a big breath of air. you have mostly just inhaled -


living organisms draw their essential elements from -

the atmosphere, lithosphere, and hydrosphere

sometimes people say that plants make make energy from the sun. however, plants make sugars using sunlight. stating that plants make energy is actually -

a violation of the first law of thermodynamics

the tendency of a home or dorm room to become increasingly messy generally reflects -

an increase in entropy

fill in the blank:
list 3 of the 6 key elements that are found in living things-

1) nitrogen
2) oxygen
3) hydrogen

kinetic energy is energy in -


potential energy is energy -

that is stored

give one of the reasons why nutrient recycling (the cycling of matter) is necessary -

it maintains an equal level of sustainability - so one thing does not run out.

energy does not have mass or occupy space.


energy is neither created or destroyed


systems will move spontaneously toward higher or maximum order or potential energy.


write out the complete formula for photosynthesis below:

6Co2 + 12 H20 yields C6H12O6 + 6O2 + 6H2O

choose one of the following nutrient cycles we discussed in class: the carbon cycle, the phosphorous cycle, or the nitrogen cycle.
either describe how the particular element is cycled in the ecosystem or sketch a diagram of the cycle and describe various parts.

in the book!

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