| A | B |
|---|
| faster | moving in a quicker or more rapid way |
| solar energy | energy from the Sun |
| bigger | greater size or power |
| slowest | not fast; at low speed |
| cooler | fairly cold; insulated food container |
| hottest | very warm; too warm for comfort |
| soonest | after a very short time; very quickly |
| shorter | not long or tall |
| kindest | very caring, generous, or compassionate |
| louder | higher in volume; expressing something noisily |
| slimmer | smaller in width than height; thinner |
| wildest | not tame or domesticated; very unruly |
| tamer | no longer wild; more friendly toward people |
| whitest | snow-colored; very pale |
| strangest | totally unexpected or extraordinary; very unfamiliar |
| electricity | a form of energy we use to run lights, computers, and machines |
| energy | power that helps us do work and run our bodies and our machines |
| generators | machines that turn motion into electricity |
| solar cells | cells used to turn sunlight into electricity |
| kinetic energy | moving energy |
| potential energy | energy at rest |
| mechanical energy | energy an object has because it can move |
| chemical energy | energy from a chemical change |
| thermal or heat energy | energy from the sun which cause particles in matter to move |
| light energy | comes from the sun and travels in waves |
| sound energy | produced when an object moves or vibrates |
| electrical energy | comes from the flow of electricity |
| nuclear energy | energy contained in the nucleus of an atom |
| radiant energy | energy that travels in rays |
| wisest | knowing the most from experience; very knowledgeable |
