click below
click below
Normal Size Small Size show me how
Quiz 1.5
Quiz 1.5 on September 13th, 2019
Question | Answer |
---|---|
What is the right way to use a spring scale? | Pull on it with a slow and steady pace |
Examples of conductors | gold, copper, aluminum, graphite |
Examples of insulators | plastic, wood, rubber, glass |
What is thermal energy? | energy from HEAT |
What is friction? | the force that opposes (stops or slows down) motion |
What do glaciers create? | valleys |
How can you separate a mixture that contains iron filings? | a magnet |
Plants and animals only compete if ____________. | there's not enough of something they need |
examples of nonrenewable resources | coal, fossil fuels, oil, natural gas |
examples of renewable resources | solar energy, water, wind |
What happens to a salt water solution when it's boiled? | the water evaporates and the salt stays in the pan |
What happens when something dissolves? | it breaks into tiny pieces too small to be seen |
What property causes liquids to "stack" on top of each other? | relative density |
Properties of a liquid | can flow, takes the shape of its container, definite volume |
Properties of a solid | can NOT flow, definite shape, definite volume |
Properties of a gas | can flow, takes the shape of its container, can expand or compress (indefinite volume) |
Examples of thermal (HEAT) conductors | metals, glass |
Examples of thermal (HEAT) insulators | styrofoam, wood, plastic |
What is an insulator? | something that STOPS the flow of heat or electricity |
What is a conductor? | something that ALLOWS heat or electricity to flow through |
What is a solution? | a special mixture where something dissolves and the ingredients change their properties |
What is a mixture? | a combination of ingredients that KEEP their properties (they do not change) |
Properties of a solution - | evenly mixed (usually all one color), must evaporate to separate |