A

acid

a chemical that has a sour taste and can corrode metal

antacid

a medicine that helps to change the acidity of stomach acid

atom

the smallest building block of all matter

B

base

a chemical that has a bitter taste and is opposite of an acid

C

chemical changes

a change to any matter that happens to the atoms that make up that matter

chemical properties

the behavior of a chemical

chemist

a scientist who studies chemistry

chemistry

the study of matter and its changes

compound

when two or more elements are bound together

corrode

to wear away matter such as a metal

E

electrons

particles of an atom that are negatively charged and orbit the nucleus

elements

matter that is made from only one kind of atom

F

formula

a recipe for a compound, usually written using letters to represent elements and numbers to represent the number of atoms

I

ignite

to catch fire

L

laboratories

a special room where scientific research and experiments take place

litmus paper

a special paper used for determining if a chemical is an acid or a base

M

matter

anything that has weight or mass and takes up space

N

neutrons

particles of an atom that are not charged and gather in the nucleus of an atom

nucleus

the collection of protons and neutrons in the center of an atom

P

Periodic Table of Elements

a table which organizes the elements by their weight

physical changes

a change to any matter that happens to the physical look or temperature of that matter

physical properties

the color, size, temperature, feel, smell, or other way of defining how an object looks

protectant

a chemical that protects fabric or leather

protons

particles of an atom that are positively charged and gather in the nucleus of an atom