Physics Playgrounds vs Open Learning Lab

Physics Playground is a hands-on science app with 102 interactive labs — from pendulums and black holes to rainbows, magnets and melting ice. Every lab is a live simulation you control with your finger, or with your hand in the air, so you can see how the world works instead of just reading about it. THREE WAYS TO EXPLORE • Explore — pick any lab and start playing. • Learning Journey — follow a short story one step at a time: Things that move, Light and sound, Earth and space. • Curiosity Lab — ask your own science question by typing or speaking and get a short, friendly answer. Tap "Draw it!" for a picture, save pictures to Photos, or have the answer read aloud. 102 LABS How the World Works (44 labs): Colour Mixer, Rainbow Spinner, Heavy or Light?, Drop Zone, Slide Race, Bouncy Balls and many more everyday science experiments Mechanics: Simple Pendulum, Projectile Motion, Elastic Collision, Spring Oscillator, Inclined Plane, Pulley System, Circular Motion and more Waves and Sound: Wave Interference, Doppler Effect, Standing Waves, Resonance Studio Light and Optics: Light Refraction, Light Reflection, Light Polarization, Rainbow Maker Electricity and Magnetism: Electric Field, Capacitor Charging, Circuit City, Magnet Maze, Electromagnetic Induction, Tesla Coil Heat and Matter: Gas Particles, Entropy & Disorder, Tiny Heat Engine, Crystal Builder, Phase Changer Quantum and Nuclear: Double Slit, Photoelectric Effect, Quantum Tunnel, Radioactive Decay, Nuclear Fission, Nuclear Fusion, Half-Life Detective Space and Relativity: Orbital Mechanics, Black Hole, Exoplanet Hunter, Relativity Rocket, Gravity Lens Earth and Energy: Tectonic Plates, Weather Balloon, Solar Grid, Wind Tunnel Fluids: Fluid Flow, Buoyancy, Vortex Lab HOW IT WORKS Touch the canvas to grab and interact with the simulation — there is no right or wrong way to explore. Adjust variables like gravity, mass, length and velocity with the built-in sliders and watch the results change instantly. For a hands-free experience, turn on the camera and control labs with your hand in the air. Hand tracking runs on your device — no images or video are stored or sent anywhere. CHALLENGES Every lab has a challenge that teaches the key idea behind it. Complete it to earn a star and track your progress across all 102 labs on the progress screen. REAL PHYSICS LAWS The simulations are built on real physics equations, and the app shows the governing laws so you can connect what you see to real formulas. ABOUT CURIOSITY LAB Answers and pictures are created by AI (Google's Gemini models) for learning and fun, and can sometimes be wrong. Every answer has a Report button, and questions are limited each day. Curiosity Lab asks for your permission before it shares a question with Google Gemini, and you can turn this off at any time in Privacy choices. WHO IS IT FOR Students, teachers and anyone curious about how the physics world works — from first questions to university physics. It makes an excellent companion to classroom learning, and no prior knowledge is needed. PRIVACY Play as a guest — no name or email needed. A grown-up can choose to sign in with Apple or Google to keep progress across devices, and can delete the account in the app at any time. You decide whether to share usage analytics. Camera processing happens entirely on your device. Privacy policy: https://physics-playground-24c5e.web.app/privacy Terms: https://physics-playground-24c5e.web.app/terms

Open Learning Lab turns Grade 2 math into an adventure game for young learners ages 6-9. Instead of dressing up worksheets as games, we use 20 genuine action mini-games to teach every concept. The adaptive engine adjusts difficulty in real time and brings mastered skills back for review at 2, 7, and 21 days — real spaced repetition, not a points streak. ADVENTURE MAP Progress through 5 themed chapters: Place Value & Number Sense, Addition & Subtraction, Multiplication Foundations, Measurement & Data, and Geometry & Fractions. Each chapter unlocks after mastering its prerequisites. 20 ACTION MINI-GAMES • Coin Dash Addition — grab the right coins before time runs out • Place Value Builder — stack hundreds, tens and ones to build target numbers • Number Line Skate — land on the right spot to build number sense • Word Problem Adventure — read math stories and pick the right operation • Fact Family Tree — grow related addition and subtraction sentences • Piggy Bank Quest — count coins to hit savings goals • Array Garden — plant arrays to discover multiplication patterns • Times Table Hero — master 1×1 to 10×10 with timed streaks • Partition Puzzle — break numbers apart for flexible thinking • Time Keeper Race — set analog and digital clocks against the buzzer • Money Shopkeeper — count coins and bills to complete transactions • Length Adventure — measure and compare lengths in standard units • Graph Detective — read bar graphs and picture graphs • Volume Voyage — explore capacity and liquid measurement • Weight Wizard — solve balance puzzles by comparing weights • Odd Squad Sorter — sort numbers as odd or even • Rounding Rocket — round to the nearest ten or hundred • Shape Builder House — identify, build and sort 2D and 3D shapes • Fraction Finder — match fractions on visual models • Tile Garden — cover shapes with unit tiles to explore area ADAPTIVE INTELLIGENCE The engine tracks every answer, advances difficulty when ready, drops a level after 3 consecutive misses, and revisits mastered skills at 2, 7, and 21 days. 22 SKILLS ACROSS 5 CHAPTERS Covers the full Grade 2 Common Core curriculum (CCSSM) with extensions into Grade 3: place value, fluency within 20, addition and subtraction within 100 and 1,000, time and money, measurement and data, geometry and fractions. PET COMPANIONS & REWARDS Choose from 8 collectible pets (Kitty, Puppy, Bunny, Bear, Fox, Panda, Unicorn, Dragon). Earn coins and gems from correct answers and spend them on hats, outfits, wallpapers and furniture. Every reward is earned through learning — never purchased. PARENT DASHBOARD Protected behind a multiplication gate. See mastery by chapter, focus areas (skills below 70% accuracy), recent sessions and personalised "next practice" recommendations. RESPONSIBLE DESIGN • Free to play. No ads. No in-app purchases. No third-party tracking. • Break nudges at 15 and 30 minutes of daily play. • Anti-grind protection prevents reward farming. • Fully offline after install. • Optional sign-in only for cloud sync across devices. VIDEO LESSONS (OLL QUEST) Curated learning videos inside the app — Math, Science, ELA, Social Studies and more. Playlists update automatically. SPEED TRICKS 7 mental-math shortcuts with animated explanations and infinite practice: +9, +8, −9, −8, doubles, near doubles, and Make 10. VOICE COACHING Friendly text-to-speech reads every question aloud — perfect for early readers. ACCOUNT & DATA CONTROL Sign-in is optional. Stay a guest and everything stays on your device, or sign in with Apple or Google to sync progress across iPhone and iPad. Open Settings > Account > Delete Account at any time to permanently remove your account and all associated data — no email required. Privacy Policy: https://openlearninglabs.com/privacy Terms of Use: https://openlearninglabs.com/terms