Ever wondered how plants grow? Or why they say the Earth is made of plates? Find out the answers to these and many other questions with the Quantum Pad 4th Grade Science book. Simply place the book on the Quantum Pad, pop in the cartridge and touch any page with the magic pen to learn about the fascinating world of science. Curriculum includes earth science (plate tectonics, volcanoes and earthquakes, rocks and minerals, and weather); physical science (scientific method, electricity, circuits and magnets); and life science (photosynthesis, animal classification and ecosystems). Content reflects state and national education standards. Works with Quantum Pad, LeapPad and LeapPad Pro learning systems (each sold separately). Imported.