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Vocab 1
Vocab 2
Vocab 3
Vocab 4
Miscellaneous
100
Anything that has mass and takes up space
What is matter?
100
Mass/Volume (Mass divided by Volume)
What is density?
100
A measure of how hot or cold something is
What is temperature?
100
A measure of the amount of matter in an object
What is mass?
100
In a ____________ mixture, you can easily separate and make out the various different parts.
What is heterogeneous?
200
A single kind of matter that is pure and has a specific set of properties
What is a substance?
200
Amount of space occupied by an object
What is volume?
200
Energy stored in chemical bonds
What is chemical energy?
200
Smallest particle of an element
What is an atom?
200
The temperatures at which substances boil and melt are considered ___________ properties.
What are physical properties?
300
the force that holds two atoms together
What is a chemical bond?
300
A change that alters the form or appearance of a material but does not make the material into another substance.
What is a physical change?
300
A change in matter that produces one or more new substances
What is a chemical change?
300
A change in which energy is given off
What is exothermic change?
300
Air is a ______________ mixture of gases (what type?)
What is homogeneous?
400
A substance made up of atoms of two or more different elements joined by chemical bonds
What is a compound?
400
A combination of symbols that represents the elements in a compound
What is a chemical formula?
400
The total energy of motion in the particles of a substance
What is thermal energy?
400
A group of atoms bonded together
What is a molecule?
400
Methods used to separate the different parts of a mixture include ________, ________, ________, ________. (name one)
What are distillation, evaporation, filtration, and magnetic attraction?
500
The idea that matter is neither created nor destroyed
What is the law of conservation mass?
500
A characteristic of a pure substance that can be observed without changing it into another substance
What is a physical property?
500
A characteristic of a pure substance that describes its ability to change into different substances
What is a chemical property?
500
A pure substance made of only one kind of atom
What is an element?
500
Around 450 B.C., this Greek philosopher proposed that all matter was made of four "elements" - air, earth, fire, and water
Who is Empedocles?