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%.
How does exposure to mercury from dental amalgam occur? Mercury exposure occurs by breathing low levels of mercury vapors and swallowing during: Placement or removal of dental amalgam fillings. Teeth grinding by people who have dental amalgam fillings. Chewing gum and eating by people who have dental amalgam fillings. During pregnancy, mercury can pass to the baby when: