| A | B |
| The Electromagnetic Spectrum | The range of all possible frequencies of light. |
| Visible Light | The light waves on The Electromagnetic Spectrum that was can see. |
| Sight | What a person can see with the human eye. |
| Loudness | How loud noise is. Commonly called loud or soft. |
| Pitch | How high or low a sound seems. |
| Human Ear | What we use to hear noise. |
| Sound Waves | The way sound energy is transferred in order to create noise. |
| Frequency | The number of waves that pass a point in each second. |
| Amplitude | The amount of energy in a sound wave. |
| Transverse Wave | A sound wave moving in a perpendicular (up and down) direction. |
| Longitudinal Wave | A sound wave that moves in a parallel direction. |