1) Classify each of the following as either a solid, liquid or gas at room temperature. (a) Milk-liquid
(d) Helium - gas
(b) Air
(e) Diamond
(c) Copper
(f) Candle wax

Waves that cause the most damage during an earthquake are a. surface waves c. s waves b. p waves d. ocean waves

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

Which planet do you think would be easiest for humans to colonize some day?