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%.
Dental amalgam fillings slowly leak mercury, tin, silver, copper and sometimes nickel. All of these metals have various degrees of toxicity. A fairly large mercury filling contains enough mercury to kill a child if given as a single dose! The most common symptoms caused by amalgam fillings are: