 a service of Arizona Western College for more than 50 years. This is KAWC Yuma, KAWP Parker, 88.9 FM on the KAWC app and at kawc.org. Trusted news for Yuma and La Paz counties. Hi, my reflato. When did you first get captivated by science? Astronaut Leland Melvin says his interest was sparked literally when his mother gave him a chemistry certificate