Matters & Atoms
The smallest piece of matter.
What is an atom?
A substance made of only one type of atom.
What is an element?
The state where atoms are packed tightly and only vibrate.
What is a solid?
The phase change where a solid heats up and turns into a liquid.
What is melting?
A phase change is considered this type of change, as no new substance is produced.
What is a physical change?
This is the amount of matter in an object.
What is mass?
The number of protons in an atom.
What is the atomic number?
The state where atoms are packed loosely and take the shape of the container but don't always fill it.
What is a liquid?
The phase change where a gas cools into a liquid.
What is condensation?
The process where adding heat energy causes molecules to move more quickly and a substance to expand.
What is expansion?
A particle in the nucleus that has a positive charge.
What is a proton?
The table used to organize the elements.
What is the Periodic Table of Elements?
This state has a neutral charge and contains free-moving electrons and positively charged ions.
What is plasma?
The special case where a gas turns directly into a solid.
What is deposition?
The process where a substance loses heat energy, molecules slow down, and the substance gets smaller.
What is contraction?
The amount of space an object takes up.
What is volume?
Formed when atoms of different elements are bonded together.
What is a compound?
The state of matter where both the shape and volume change easily.
What is a gas?
The phase change that occurs when a liquid heats and turns into a gas.
What is boiling?
The type of change that results in a change of appearance only.
What is a physical change?
This property is calculated by dividing the amount of matter by the specific volume.
What is density?
Two substances mixed together without chemically bonding.
What is a mixture?
The movement characteristic of atoms in a solid.
What is vibrating?
The temperature at which water will boil. List Fahrenheit and Celsius.
212 degrees Fahrenheit
100 degrees Celsius
Mercury (Hg) will melt at this temperature in Celsius.
-38.83 degrees Celsius