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Quiz 1.4

Quiz 1.4 on Friday, September 6th 2019

What is a conductor? a material that ALLOWS heat or electricity to pass through
What is an insulator? a material that STOPS heat or electricity from passing through
Examples of insulators oven mitts, wood, glass, plastic
Examples of conductors gold, copper, aluminum, steel, ALL METALS are conductors
What are the properties of a liquid? can flow, indefinite shape, definite volume (cannot expand and cannot be compressed)
What are the properties of a solid? definite shape, definite volume, cannot flow or expand
What are the properties of a gas? can flow, indefinite shape, indefinite volume, can expand or be compressed
When do animals compete for food? only when they eat the same thing
What happens when a substance dissolves? it breaks down into tiny pieces to small to see
If a liquid sinks it has _____________ density. more
If a liquid floats it has _____________ density. less
How many things can you change when setting up an experiment? only one, all other things must be exactly the same
What is erosion? when sediment MOVES from one spot to another
What is weathering? when rocks BREAK down into tiny pieces of sediment
Which metals are attracted to magnets? steel, iron, nickel, cobalt (SINC)
Examples of NON magnetic items - aluminum, cotton, plastics, wood
What are balanced forces? when the forces acting on either side of an object are equal
Soluble means - CAN dissolve
How would you separate a mixture of rocks and water? a strainer or sieve
How can you separate a solution? use EVAPORATION; boil the solution until all the water evaporates, leaving the solids behind
How would you separate a mixture that contains magnetic pieces? use a magnet to attract the magnetic pieces
What is the order of the planets from the Sun? Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Properties of a solution - evenly mixed (all one color), something dissolves, must evaporate to separate
Properties of a simple mixture - nothing dissolves, not evenly mixed, easy to separate
Created by: mrsnowlin



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