This e-book-DVD contains interactive quizzes for grade 4 students for Science Olympiad preparations. There are total 13 quizzes. Total No. of Questions: 1100+ Table of Content: Basics of chemistry, Basics of Physics-1, Basics of Physics-2, Plant & animal life-1, Plant & animal life-2, Plant & animal life-3, Environmental Studies, General Science, Human Body, The universe This DVD contains 5 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!