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vocabulary Un 2,3,4

QuestionAnswer
Weathering is the breaking of rock
Erosion is the movement of rock
Deposition is the dropping of rock in a new place
series circuit only has one way for the electricity to flow; one pathway
parallel circuit has 2 or more ways for electricity to flow
circuit a path that electricity travels through
open circuit a break in the circuit; electricity CAN NOT flow
closed circuit No breaks in the circuit; electricity is able to flow
MELTS mechanical, electrical, light, thermal, sound
Mechanical energy energy of motion
Sound energy energy of vibration (a fast back and forth movement)
Electrical energy movement of negative particle (electrons)
Thermal energy heat energy; the faster particles move, the hotter it is
reflection the bouncing of light
refraction the bending of light
magnifying glass, glasses, microscopes, binoculars, water refraction
mirror, still (calm) water, shiny surfaces reflection
sediment small pieces of rock
sedimentary rock rock formed by sediment; formed in water
compaction pressure
cementation pieces of sediment stick together by minerals in the water
steps of making sedimentary rock deposited, compacted, cemented and time
Fossils fuels an energy source formed by once living organisms
coal formed in swamps by ferns
oil and natural gas formed in oceans by tiny microscopic sea organisms
steps of fossil fuel formation time, heat and pressure (compaction)
fossil evidence of past organisms that lived a long time ago
What can fossils tell us? they can tell us about past environments and past organisms
What are the steps for an organism to become a fossil? an organism dies; gets buried quickly in sediment, the bones are replaced by minerals seeping into the bones, encased inside of sedimentary rock
landforms the form of the land
canyons formed by a river by rock being weathered and eroded
delta formed by a river when sediment is eroded and deposited at the mouth of a river
U-shaped valley formed by a glacier (ice) when ice weather and erodes the ground
sand dune formed by wind when sand is eroded and deposited by wind created mountains of sand
renewable resources resources that can come back in a short period of time
nonrenewable resources resource that can not come back in s short period of time; they take millions of years to make ex. fossil fuels
mining when coal is dug out of the ground
drilling how oil and natural gas are taken from the ground
organism a living thing
boiling point of water 100 degrees celcius
freezing point of water 0 degrees celcius
melting point of water 0 degrees celcius
freezing when water changes from the liquid state to the solid state at 0 degrees celcius
melting when water changes from the solid state to the liquid state at 0 degrees celcius
evaporation when water changes from the liquid state to the gas state
condensation when water changes from the gas state to the liquid state
matter anything that has mass and takes up space
relative density When matter sinks or floats in water
conductor when electricity or heat is allowed to flow through it ex. all metals
insulator when electricity or heat is NOT allowed to flow through it ex. rubber, wood, plastic
solubility the ability of a substance to dissolve evenly into another substance
soluble when a substance can evenly spread out into another substance ex. salt and water
insoluble when a substance can NOT dissolve into another substance ex) oil and water
volume the amount of space matter takes up
mass the amount of matter in an object
classifying putting into groups by their characteristics
Popular Science sets

 

 



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