Materials
_______ is hard and usually transparent.
Glass
We measure teperature with a ________.
thermometer
Stone is a _____; lava is a _______.
solid; liquid
To _____ means to put the same amount of matter into a smaller area.
condense
Rust, or corrosion, is when a ______ changes from being in a damp environment.
metal
______ is strong for its weight and comes from trees.
Wood
Heat makes materials ________, or get bigger.
expand
_______ have their own shape.
Solids
Water changes from a liquid to a solid at temperatures less than _____.
zero degrees Celsius
Steel will _____ when it is around water and oxygen.
rust
_______ can be shiny and is a good conductor.
Metal
_____ is a liquid metal in some thermometers.
Mercury
______ take the shape of the biggest area they can.
Gases
Electrical wires are usually insulated with _______.(material)
plastic
Water boils (changes to a water vapor) at ________.
100 degrees Celsius
_______ comes from a liquid called latex and is flexible and elastic.
Rubber
The normal temperature of the human body is about ____ degrees.
37
Mercury is a ______ at normal temperatures.
liquid
Diamond is a type of _______.
stone
________________ is a material that is made by firing clay in a hot oven.
ceramic
_____ is flexible, can be formed into many shapes, and is made from oil.
Plastic
Fahrenheit and ____ are two scientists that temperture scales are named after.
Celsius
To ______ is to change from a solid to a liquid state.
melt
A material that does NOT allow water to pass is _______.
waterproof
Float is the opposite of ______.
sink