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Enter the lab of Professor X. Ploder as his assistant on a top-secret assignment: designing and testing a spy's pocket rocket. Then discover all about the science of rockets through practical experiments that you can try at home.
Level 3 is for children able to read on their own. The stories are exciting and captivating in order to develop the child's own desire to read. More text and more complex sentence structure are presented, with information spreads to help develop the reader's general knowledge. The choice of subject widens to match the broadening of children's experiences and interests.