| A | B |
|---|
| does | form of the verb to do |
| doesn't | contraction of the words does and not |
| irrational | not consistent with or using reason |
| perpendicular | a straight line at right angles to another line |
| systematic | characterized by order and planning |
| propaganda | information that is spread for the purpose of promoting some cause |
| density | a property of matter representing the mass per unit volume |
| volume | the amount of 3-dimensional space occupied by an object |
| catalyst | A substance that speeds up a chemical reaction, but is not itself changed during the reaction. |
| coefficient | A number being used to multiply a variable or power of a variable in an algebraic expression |
| dismal | dingy: depressing in character or appearance |
| heliotherapy | therapeutic exposure to sunlight, the sun cure |
| heliotrope | a moderate reddish purple |
| hydrate | To add water |
| hydraulic | moved or operated or effected by liquid (water or oil); |
| helio | means sun |
| hydra | means water |
