Ch-ch-ch-changes
A change in which one or more substances combine or break apart.
What is a chemical change?
Anything that takes up space.
What is matter?
The study of properties of matter.
What is chemistry?
A measure of how much matter is in an object.
What is mass?
A mixture containing a solvent.
What is a solution?
Energy that an object has due to its motion.
A metal strip that conducts electricity.
What is an electrode?
A change in substances that does not change its identity.
What is a physical change?
A neutral particle made of two or more atoms.
What is a molecule?
A combination of symbols that represents the elements in a compound.
What is chemical formula?
A measure of force.
What is weight?
The force that holds atoms together.
What is a chemical bond?
The energy of moving electrical charge.
What is electrical energy?
The ability to do the work or cause change.
What is energy?
The transfer of energy from a substance at a higher temperature to a substance at a lower temperature.
What is thermal energy?
The basic particle from which all elements are made.
What is an atom?
A characteristic of a pure substance that describes its ability to change.
What is a chemical property?
The system of units used by scientists.
What is the International System of Units (SI)?
A pure substance made of two or more elements.
What is a compound?
A form of potential energy that is stored in chemical bonds.
What is chemical energy?
The principal that matter can neither be created or destroyed, meaning that even if a substance undergoes a change, it's total mass will stay the same, or be conserved.
What is the Law of Conservation of Mass?
A change when energy is taken in.
What is endothermic change?
A single kind of matter that is pure.
What is a substance?
A characteristic in a substance that does not change.
What is a physical property?
The ratio of mass.
Two or more substances that are mixed.
What is a mixture?
Stored energy that results from the position of an object.
What is potential energy?
A mixture in which substances are evenly distributed throughout, for example, water juice.
What is a homogeneous mixture?
A change when energy is taken out.
What is an exothermic change?
A pure substance that can not be broken.
What is an element?
The property represented by this formula:
Mass/VolumeWhat is density?
The amount of space matter occupies.
What is volume?
A mixture in which substances are not evenly distributed throughout, for example, a chocolate chip cookie.
What is a heterogeneous mixture?
A form of energy that travels throughout space.
What is electromagnetic energy?
A measure of the average kinetic energy of the particles in a substance.
What is temperature?