Mendeleev.me vs MiddleSchoolSciencePrep

Mendeleev.me is a multiple-awarded and certified app that provides the following: 01. A virtual laboratory with cool chemistry experiments 02. Concise information for all chemical elements 03. Multi-language support 04. In memoriam Chernobyl 05. Hidden app secrets (easter eggs) 06. Studying analytics 07. Quick search & in-place information filtering 08. Downloadable PDFs for each chemical element 09. Presentation galleries & movie-clips 10. Atom structure simulations 11. Cohesive design focused on functionality 12. Controls for haptic feedback, sounds & visual effects The app complies with IUPAC's (International Union of Pure and Applied Chemistry) latest standardization and is used in more than 148 countries worldwide. Love the app? Rate us! We update the app regularly so we can make it better for you. If you have feedback & questions please visit our website: https://app.mendeleev.me Mendeleev.me - The chemistry lab in your pocket.

Description Ace middle school science with SciencePrep — a quiz app built for grades 6 to 8 that covers Earth Science, Life Science and Physical Science with over 1,000 practice questions and a clear explanation for every answer. THREE SUBJECTS, 18 TOPICS, 113 QUIZZES Earth Science • Earth Structure • Earth Surface • Ecology • Energy in Earth Systems Life Science • Cell Biology • Cell Structures and Functions • Genetics • Human Body • Evolution and Change Physical Science • Astronomy • Atoms and the Periodic Table • Matter and Change • Motion and Force • Newton's Laws • Properties of Matter • Electricity and Magnetism • Waves • Physical Science and You LEARN FROM EVERY QUESTION Every one of the 1,000+ questions comes with a short explanation of why the answer is right, so a wrong guess turns into a lesson instead of a lost point. STUDY YOUR WAY • Quiz Mode — multiple-choice quizzes with instant feedback and a score summary • Timed Mode — race a 20-second clock on each question to prepare for test conditions • Study Mode — flip through every question in a topic as flashcards • Review Answers — see every question you missed, with the correct answer and explanation • Bookmarks — save tricky questions and study them together later TRACK YOUR PROGRESS • Completion rings for every subject and topic • Attempt counts and average scores for each quiz • A daily study streak to keep you motivated FREE TO TRY, ONE PRICE TO UNLOCK The first quiz in each subject is free. Unlock every quiz, topic and flashcard deck with a single one-time purchase — no subscriptions, no ads, no accounts. Perfect for students preparing for class tests, state science assessments and end-of-year exams, and for parents and teachers who want a quick way to check understanding.