Edheads provides an online resource for kids. Its various games and activities engage students. Students can develop their critical thinking skills in fun way. Information from the website is noted below: Edheads is an online educational resource that provides free science and math games and activities that promote critical thinking. Choose from Simple Machines, Virtual Knee Surgery or Stem Cell Heart Repair, among others. All activities meet state and national standards. We partner with corporations, universities, and school systems throughout the United States, which help us research, design, and test our activities every step of the way. Not only do teachers and students appreciate our free activities, Edheads has been recognized by almost every major award on the Web for our excellent educational content.