the basic particle from which all elements are made; the smallest particle of an element that has the properties of that element.
What is an atom?
100
The SI unit of mass.
What is the kilogram?
100
A substance that goes through this kind of change is still the same substance after the change.
What is a physical change?
100
Two or more substances that are together in the same place but their atoms are not chemically bonded.
What is a mixture?
200
the study of the properties of matter and how matter changes
What is chemistry?
200
the force of attraction that holds two atoms together
What is a chemical bond?
200
The SI unit of volume.
What is the cubic meter?
200
This kind of change produces new substances with new and different properties.
What is a chemical change?
200
SI is the abbreviation for this.
What is the International System of Units?
300
a single kind of matter that is pure and has a specific set of properties
What is a substance?
300
a group of two or more atoms held together by chemical bonds with different properties than each atom
What is a molecule?
300
You can determine the density of a sample of matter this way.
What is dividing its mass by its volume?
300
Every chemical and physical change in matter includes a change in this.
What is energy?
300
A form of potential energy that is stored in chemical bonds between atoms.
What is chemical energy?
400
Name one physical property of water.
What is - water boils at 100 C, freezes at 32 C, etc.?
400
All matter in the universe is made up of more than 100 different substances, called.... (pure substances which cannot be broken down into other substances by chemical or physical means)
What are elements?
400
The volume of a rectangular box that is 2 cm long x 3 cm wide x 4 cm high.
What is 24 cm cubed?
400
The principle that matter is neither created nor destroyed during any chemical or physical change.
What is the law of conservation of matter?
400
Four methods used to separate mixtures.
What are distillation, evaporation, filtration and magnetic attraction?
500
Every form of matter has these two kinds of properties.
What are physical properties and chemical properties?
500
A mixture can either be ___________________ (you can see the different parts and they can be easily separated out) or __________________________ (so evenly mixed that you cannot see the different parts).
What is heterogeneous and homogenous?
500
The density of a liquid with a mass of 17.4 g and a volume of 20 mL?
What is 0.87 g/mL?
500
The melting of ice is an ______________________ change, a change in which energy is absorbed; an _________________ change releases energy.
What is endothermic and exothermic?
500
The mass of an element with a density of 4.0 g/cm3 and a volume of 6.5 cm cubed.