Scatter synonym domino cards face up on a flat surface. 2. Taking turns, student one places the START domino on the table, and reads the word on the other end of the domino (i.e., small). 3. Looks for a domino with a synonym (i.e., little).
Reducing Mercury in Gold Shops with a Mercury Capture System Small-scale gold refining and processing is a major cause of air pollution from mercury. EPA helped design a low-cost mercury capture system that is simple to build and install, using locally available materials, and that reduces mercury emissions by at least 80%.
The Dangers of Mercury Thermometers. The small silvery ball in a mercury thermometer can be dangerous if the glass breaks and the mercury is not cleaned up properly. The mercury will evaporate and can contaminate the surrounding air and become toxic to you and your family.