Offered by Exploit, a nonprofit and independent California Corporation, the Science Quizzes site contains more than forty quizzes in various science subjects. Topics include astronomy, physics, weather, chemistry, water, cold, Mars, and other physical and biological subjects. Each quiz allows users to choose from among several answers and then check to see how many they got right. Although fairly short and lacking correct answer explanations, the questions should definitely spark the interest of students and get them to explore the subjects further.