Atoms and Elements
The number of elements.
What is 118
The state of matter whose atoms flow and slide past each other.
What is a liquid
The type of property that does not change the structure of matter.
What is physical property
The change that creates a new material.
What is chemical change
Define Matter.
What is anything that has mass and volume
Describe the atoms in a solid.
What is tightly packed and vibrate in place
The part of a solution that gets dissolved.
What is solute
Name the type of change where only the phase changes.
What is physical change
State the theory of the conservation of matter.
Matter cannot be created or destroyed
Describe the atoms in a gas.
What is not tightly packed and slip past each other quickly
Name two physical properties.
What are volume, density, solubility, boiling point, freezing point, melting point
Name an example of a physical change.
What is melting point, shape, freezing point
Define the term element.
What is a substance made of only one kind of atom
As energy increases, what happens to the energy of motion (the atoms).
What is the energy of motion increases, the atoms move more quickly
Name two chemical properties.
What are flammability, oxidation, toxicity, sensitivity to light, reactivity to water
Name an example of a chemical change.
What is burning, rusting, cooking
The 3 parts of an atom and their charges.
What is Proton (positive), Neutron (neutral), and Electron (negative)
The thing that changes a phase (or state) of matter.
What is thermal energy
Name the density equation.
What is Density = Mass / Volume
Name the change that occurs with a change in energy.
What are physical and chemical changes