1. 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

2. 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

3. 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

4. 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

5. 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

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