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Week 2.3

QuestionAnswer
What is a conductor? an object that ALLOWS heat and electricity to pass through
Examples of conductors iron, steel, gold, aluminum, ALL METALS are conductors
What is an insulator? an object that STOPS heat and electricity from passing through
Examples of insulators styrofoam, wood, paper, cloth, rubber, plastic
Properties of Solids definite shape, definite volume (shape can't change, cannot expand)
Properties of Liquids no definite shape, definite volume (shape CAN change, CANNOT exand)
Properties of Gas no definite shape, no definite volume (shape CAN change, CAN expand
mechanical energy is - energy from MOVEMENT
electrical energy - energy from moving electrons - anything that plugs in or uses batteries
thermal energy - heat energy
thermal energy examples - steam iron, oven, stove, fire, heater
inherited trait - a trait you are born with, or a trait that cannot be changed naturally
learned behavior - a behavior that is learned, or acquired after birth - something that is NOT determined by parents
reflection is - the BOUNCING of light when it hits a smooth, shiny surface
refraction is - the BENDING of light when it travels through a new medium like glass or water
objects that reflect - mirror, smooth metals, tinted glass, dark TV screen
objects that refract - water, lenses, prisms, microscope, telescope, magnifying glass, hand lens
How does light travel? in straight lines, even after being reflected or refracted
Which property of light causes objects to appear larger or smaller? refraction
"ingredients maintain properties" means - ingredients DO NOT CHANGE, everything looks the same after mixing
"ingredients change their properties" means - ingredients CHANGE, things look different after mixing, something dissolves
renewable resource - a natural resource that can be replaced in a human lifetime (100 years or less)
renewable resource examples - plants, animals, water, sunlight, wind
non-renewable resource - a natural resource that takes millions of years to form or replace
non-renewable resource examples - metals, aluminum, gold, steel, oil, coal, natural gas
when looking at layers of rock the oldest layer is - the bottom layer
when looking at layers of rock the youngest layer is - the top layer
what property of light causes object to appear broken or larger in water? refraction
soluble means - CAN dissolve in water
insoluble means - CANNOT dissolve in water
less dense means - will float in water
more dense means - will sink in water
Created by: nowlinclass
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