Glossary

Question 1

Atoms

Answer 1

The smallest particles of which all matter consists.

Question 2

Element

Answer 2

Materials found on the Periodic Table. It cannot be broken down into two or more materials by chemical means.

Question 3

Proton

Answer 3

Positive particle found in the nucleus.

Question 4

Neutron

Answer 4

Neutral particle found in the nucleus.

Question 5

Electron

Answer 5

Negative particle found in the space around the nucleus.

Question 6

Nucleons

Answer 6

Protons and neutrons

Question 7

Diatomic elements

Answer 7

Elements that occur in nature as molecules containing two atoms.

Question 8

Electrolysis

Answer 8

Process whereby electricity is conducted through a liquid.

Question 9

Diffusion

Answer 9

Motion of liquid particles or gas particles from higher to lower concentration

Question 10

Freeze or solidify

Answer 10

Liquid state changes to a solid state

Question 11

Boil

Answer 11

Liquid changes into a gas

Question 12

Density

Answer 12

The amount of mass in a given volume

Question 13

Reactants

Answer 13

Materials that react in a chemical equation reaction

Question 14

Products

Answer 14

Materials that are formed in a chemical equation reaction

Question 15

Synthesis reaction

Answer 15

Materials combine and form new, more complicated materials.

Question 16

Decomposition reaction

Answer 16

Material is broken down into simpler materials.