geosphere test 3 Flashcards
what does chemical weathering involve
chemical change
what does chemical change involve
chemical reactions
what are chemical reactions represented by
chemical equations
chemical equations use _____ and ______ to represent chemical reactions
symbols and formulas
AB —>
A + B
A + B —>
AB
A + B —>
AB + Heat
what type is A+B —> AB + Heat
exothermic
what does exothermic mean
gives off energy, gets hotter as it reacts, makes heat
A + B + heat —>
AB
what type of energy is A + B + heat —> AB
endothermic
endothermic
requires the input of energy; gets colder as it reacts; uses heat
A+B —> AB (combined as one)
synthesis
AB —> A+B (takes 2 things and breaks it down into individual pieces)
decomposition
AB + C —> CB + A (a substance displaces another substance)
single displacement
AB + CD —> AD + CB (two shapes being displaced)
double displacement
burning fuels is a reaction; releases carbon dioxide and water; both are greenhouse gases
combustion reaction
matter is neither created nor destroyed. it is converted to other forms. (the reason we balance equations)
law of conservation of matter
what is the bridge between biology (life) and rock (geology)
soil
what components make up soil
minerals (from weathering of rocks), organic matter (humus, dead animal or plant matter) , water (moisture), air
what controls formation of soil
parent material, climate, plants and animals, slope, time
bedrock determines chemistry of soil (not weathered rock); most important thing to control formation
parent material
wet climate and temperature extreme/rapid fluctuate cold- cold to hot (rapid changes and can impact soil)
climate
increase aeration (worms), water, and fertilizer; animals can fertilize soil
plants and animals