Science Exam Review!!
Terms
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- Equations
- REACTANT yields to the PRODUCT
- Variables
- are something that can vary or change
- Atomic Number
- equals the number of protons in an atom
- 1st Law of Thermodynamics
- 0 Kelvin...( Molecular motion stops ( Brownian motion)
- Conductor
- allows for energy transfer
- 3rd Law of Thermodynamics
- Conservation...( ENERGY cannot be created nor destroyed, only moved)
- Periodic Table
- up and down the table are called... FAMILIES, and acrossare called... PERIODS
- weather
- whats happening in the atmosphere right now
- Nitrogen Cycle
- consists of Nitrogen-fixing bacteria, and Decompostion
- Transpiration
- is the process by which water is released into the atmosphere by the plants and their stomata
- Mesosphere
- middle of atmosphere layers... shooting stars are here... mesospause exists
- Nucleus
- densest part of the atom, holds protons(p+), and neutrons(nuetral, no charge)
- Similarities between GOOd and BAD ozone
- both have 3 oxygen atoms, both next to the Stratopause
- Ecosystem
- all living organisms in a certain area as well as their physical environment
- Inorganic
- not usable to plants or animals
- Good Ozone
- protects us from the sun's UV rays, only in Stratosphere
- Seasonal Changes
- caused by earth's tilt as it rotates
- Water Cycle
- evaporation, condensation, precipitation
- Chemical Change (cycles)
- Carbon Cycle and the Nitrogen Cycle
- Carbon Cycle
- consists of Cellular Respiration, decomposition, and combustion... (Photosynthesis also occurs)
- Climate is determined by:
- Latitude, Atmospheric Circulation patterns, Ocean Circulation patterns, Local Geography, Seasonal Changes
- Law of Conservation of Matter
- Matter cannot be created nor destroyed, only moved around
- Condensation
- gas condensing into a liquid.... a physical change
- Thermodynamics
- means Heat/Energy
- Weather is determined by:
- Location from equator, altitude, beaches/coast, and atmosphere patterns
- Control Group
- used as a reference; it contains all variables you are testing
- Nonmetals
- brittle, poor conductors of electricity and heat, non malleable
- Trophic Level
- is each step in the transfer of energ through an ecosystem
- Radiation
- enery transfering in wave form (UVA, UVB,UVC)
- Physical Change (cycles)
- Water Cycle
- Stratosphere
- where the ozone is located... good ozone... protects us from UV Rays... Stratopause exists
- Cellular Respiration
- the process of breaking down food to yield energy
- Ecosystem is made up of:
- living things and the physical environment
- Organic
- usable to plants and animals
- Convection
- process of which hot air rises, and cold air sinks
- climate
- the average weather
- Troposphere
- Bad ozone... most pollution is here... traps most/all of bad greenhouse gases... tropopause exists
- Energy
- is the ability to move or perform work
- Bad Ozone
- where we live, damages vegetation, in Troposphere
- Metalloids
- Hybrid
- Thermosphere
- space shuttle orbit.... northern lights are here... thermopause exists
- Earth's Atmosphere
- 4 billion years old, 78% nitrogen, 21% oxygen, 1% water vapor, CO2, Ne, He, other gases, 90% of air is in first
- Conduction
- Atoms must come in contact to transfer energy(heat energy)
- Heat
- is a form of energy
- Energy levels
- 1st level holds max. of 2 e- , 2nd level holds max. of 8 e-, 3rd level holds max. of 18 e-
- Montreal Protocol
- Signed Sept. 16, 1987... 100 nations have LIMITED their CFC's production
- Food Pyramid
- Producer, Primary Consumer, Secondary Consumer, Tertiary Consumer
- Cellular Respiration
- sugar + O2 = Water + CO2 + Usable Energy... release energy from food
- Atomic Mass
- equals how much the atom weighs
- Photosynthesis
- LIght + water+ CO2 = Sugar + O2... uses sun energy to make food energy
- Metals
- Ductile, Malleable, Conduct electricity and heat, (it can expand and bend)
- Experimental Group
- to test your hypothesis under controlled conditions
- Insulator
- allows slow energy transfer