Definitions
What is a liquid?
A liquid is a state of matter that has a definite volume but no definite shape.
What is evaporation?
The change of state from a liquid to a gas.
What is a physical change?
A change that does not alter the chemical composition of a substance, like cutting paper.
What is hardness?
The measure of how resistant a material is to scratching, bending, or denting.
How can you separate salt from salt water?
Allow the salt water to sit until the water evaporates, leaving the salt behind.
What is a solid?
What is condensation?
The change of state from a gas to a liquid.
What happens to bread when it burns?
The bread changes color and gives off a different odor.
What is magnetism?
A property that attracts metal such as steel clips.
What is solubility?
The ability of a material to dissolve into another material.
What is a gas?
What happens to boiling water?
The water gets lower and lower and becomes a gas.
What is a chemical change?
A process where the material and its properties change, resulting in a new substance.
What is reflectivity?
The property that allows you to see your image in a mirror.
What is a mixture?
A combination of materials that do not change into a new material when mixed.
What is matter?
Anything that has mass and takes up space.
What is frost?
When water vapor in the air cools so quickly that it freezes on surfaces.
What is a chemical reaction?
The process by which a chemical change occurs.
What is conductivity?
A property affected by the use of electrical insulators.
What is the conservation of matter?
The principle that when matter changes state, the total amount of matter stays the same.
What is mass?
The amount of stuff in an object.
How does water vapor change?
It changes from a gas to a liquid when it cools.
What is the result of a chemical reaction?
A new material with new properties is formed.
What is thermal energy?
The moving particles of energy.
What happens in a glow stick when it is snapped? (mass)
The total mass of matter stays the same, and a chemical reaction occurs.