'easyLearn Simple Machines HD' is an interactive educational app for kids to learn about simple machines like scissors & ladders used in our daily life. Lots of real-world pictures, diagrams & simple facts along with quiz formats based on pictures & clues, give the kids a great visual understanding of the topic. This App can be used as part of the physical-science curriculum in upper elementary and middle school classrooms, in the homeschool environments, as supplemental learning at home & as reference material by teachers. The lessons covered include: 1. What are Simple Machines? 2. Work, Force & Distance with diagram & formulas. 3. Types of Simple Machines - Inclined Planes (Ramps), Wedges, Screws, Levers, Wheels & Axles, Pulleys 4. Inclined Planes - Movable & Fixed: Winding Road, Staircase, Ladder, Portable Ramp, Slide, pyramid ramp etc. 5. Wedges: Axe, Nail, Doorstop, human teeth, chisel, knife, saw etc. 3. Screws - Interlocking & Non-Interlocking - wood screw, cork screw, wrench, nut & bolt, bottle cap etc. 4. Levers - First, Second & Third Class Levers, Double Levers - see-saw, crowbar, scissors, nut-cracker, wheelbarrow, tweezers, tongs, shadoof etc. 5. Wheels & Axles: car wheel & axle, door knob, skateboard, ferris wheel etc. 6. Pulleys - Simple & Compound Pulleys, Fixed & Movable Pulleys: Flagpole, window shade, ship rigging, zipline, block & tackle etc. 7. For each type of simple machine, the following aspects are covered: 7a. parts of the simple machine with diagrams 7b. examples in nature 7c. history of how it evolved 7d. lots of examples & their uses 7e. mechanical advantage with diagrams: simple formulas & examples for calculating mechanical advantage. 8. How simple machines work together. There are 3 modes to begin with. * Learn Mode - Table of contents links to lots of simple learning pages with pictures and facts about each topic. * Practice Mode - After learning your facts, you can practice your skills in this mode by answering questions or clues. There are 7 types of activities. Each one is in the form of a quiz, but it gives you many chances until you get your answer right. 1. Naming: Tap the correct name of the object shown in the picture, using the clue. 2. Questions: Tap the correct picture to answer the question. 3. Matching: Tap the correct picture on the right to match the picture shown on the left, using the clue. 4. Puzzles: Join the pieces of the puzzle to see the picture and its name. 5. Sorting: Sort the pictures into two groups using the clue. 6. Trivia: Tap the correct answer to the question. 7. Assorted: This combines all the 6 types above in a random fashion. * Quiz Mode - After practicing your answers, you can take the actual Quiz in this mode. There are 5 types of activities similar to the ones in Practice mode. Each one is in the form of a quiz. You can select your answers for all questions/clues one by one and at the end of the Quiz, it gives you a summary of how you scored and lets you compare all your answers to the correct answers one by one. 1. Naming: Tap the correct name of the object shown in the picture, using the clue. 2. Questions: Tap the correct picture to answer the question. 3. Matching: Tap the correct picture on the right to match the picture shown on the left, using the clue. 4. Trivia: Tap the correct answer to the question. 5. Assorted: This combines all the 4 types above in a random fashion.