This interactive comic presents a story where users make choices that determine the adventure's outcome. The app features a doomsday device, a time machine, and a mind-reading helmet, leading to thousands of possible paths.
Learn addition and subtraction by solving problems to reveal colors and pictures. They can while practicing basic skills. The provides instant feedback on correct answers.
Access periodic table for elements, search by name, symbol, or atomic number. View Wikipedia links for each element. Examine periodic table layouts. Balance chemical reaction equations.
