Types of Energy
This type of energy is transported through cables and easily transformed into heat energy or light energy.
electrical energy
This is everything that forms the universe and occupies space.
matter
Changes in matter can be categorized as chemical changes or _____________ __________.
physical
Elements are examples of __________ ___________ because they are formed of only one type of matter.
pure substances
Water at a temperature of 100 degrees C or less is in a ___________ state.
solid
This is energy that is stored in substances. Examples include food, fuel (diesel, gasoline), batteries.
chemical energy
This is the amount of space an object occupies (ml, l, cm3, m3, etc.).
volume
Expansion, contraction, and movement are examples of ________ __________ in matter.
physical changes
The two types of mixtures are ____________ and heterogeneous.
homogeneous
The change of state from a gas to a liquid.
Condensation
When one form of energy is changed into another it is called a ____________ of energy.
transformation
This is the amount of matter in an object. (g, kg, etc.)
mass
This type of change occurs when a two or more substances react to produce a different substance.
chemical change
In heterogeneous mixtures, you can see the different _____________. Examples: rocks at the beach, fruit salad, bag of candies
components
The change of state from a solid to a liquid.
Melting
The sum of potential energy (energy from mass and elevation) and kinetic energy (energy from mass and velocity).
This is the mass of an object divided by the volume of the object. {d=m/v}
density
The new substances formed from a chemical reaction are called __________.
Products
In ____________ mixtures, you cannot see the different components. Examples: milk, air
homogeneous
Water at temperatures of 100 degrees C or more is in a _________ state.
gas/vapor
This is the energy emitted by radioactive substances.
nuclear energy
Mass and volume are examples of general properties, while color and density are examples of ______________.
specific properties
This is the type of reaction that occurs when a substance reacts with oxygen.
oxidation
Saltwater, tea, and powdered drinks are examples of ______________.
solutions
This occurs when a solid changes into a gas.
Sublimation