This e-book-DVD contains interactive quizzes for grade 9 students for Science Olympiad preparations. There are total 10 quizzes. Total No. of Questions: 400+ Table of content: Chemistry: elements compounds & mixtures, gas laws and matter around us pure, periodic table, physical & chemical changes and the structure of the atom This DVD contains 3 quiz applications. NO internet is required to take the quiz/Practice tests. Students can take quiz any number of times. The applications should be installed in computer/laptop ( windows 7 and above). An icon will be created on desktop. A licence is required to play the quiz application. Send the token number and Product id at e-mail: support@learnersplanet.com, Ge the licence and start learning ! Have fun!