10/5/09 1. Which group contains the most elements? Metalloids Non-metals Metals Transition elements 2. All elements are composed of extremely small particles called Compounds Mixtures Atoms Molecules

Anything that has mass and takes up space is considered Matter Energy Chemistry Endothermic A chemical equation that shows the same number of each kind of atom on both sides of the equation is said to be Balanced Unbalanced An incomplete reaction A replacement reaction

Which of the following is an example of chemical change? Water evaporating Carbon joining with oxygen to form carbon dioxide Ice cream melting A pencil breaking The melting and boiling point of silver are respectively 960.8˚C and 1950˚C. What is its freezing point? 0˚C 100˚C 960.8˚C 1950˚C

In order for a wave to form, what must energy cause a medium to do? Vibrate Compress Melt Diffract During a storm, a TV reporter says that the ocean waves are 3 meters high. This reported distance equals the distance From crest to the next crest From one trough to the next trough From a crest to a trough From a crest to the level of calm water

The number of complete waves that pass a point in a certain amount of time is a wave’s Amplitude Frequency Wavelength Speed The bending of a wave due to a change in its speed is Interference Reflection Diffraction refraction

Answer Key 1. C/C 2. A/A 3. B/C 4. A/D 5. B/D