EDU-36749
Metal Detector w Beep
Science Fair Projects & Experiments

Metal Detector Features Aluminum extension from 23" (58cm) to 38" (96cm) LED display Low electrical consumption High-low sensitivity adjustment Durable ABS body Instruction manual Science Fair Project Ideas Compare the lead content of drinking Water in different homes or schools Tests the effects of zinc on the Indian mustard (Brassica juncea) and how good of a hyper-accumulator of zinc this plant species is.  : http://www.odec.ca/projects/2005/gupt5n0/public_html/ Find out what insulators might prevent metal from being detected to prevent a bomb or bullet from being found by collecting metal samples and making a frame. Collected insulator samples of the same size and volume made out of different rocky materials with different densities. Tune the metal detector to a silent radio signal and then put a metal sample underneath and slowly bring the metal detector down until you hear a static signal. Record the height when the signal was detected. Repeat the experiment for each of the metal samples and each insulator. Free Download Manual