Practice Problems
Chemistry
🧪 Molecule Builder Game
Interactive drag-and-drop game to build chemical compounds from common cations and anions. Learn compound naming, charge balancing, and ionic bonding through hands-on practice!
WebQC Chemical Tools
Professional chemical equation balancer and calculator suite. Balance equations, calculate molecular weights, perform stoichiometry calculations, and access other essential chemistry tools.
Interactive Periodic Table
Explore the elements with the Royal Society of Chemistry's comprehensive interactive periodic table. Click on any element to discover its properties, history, and uses.
Physics
🚀 Projectile Motion Calculator
Master the 4 kinematic equations with interactive problem solving. Enter any 2 known variables (initial velocity, angle, height, range, etc.) and solve for all others with step-by-step solutions.
🎯 Pendulum Simulator
Explore realistic pendulum motion using exact differential equations (no small angle approximation). Adjust length, initial angle, and air resistance to see how they affect the motion. Perfect for understanding oscillatory motion and energy conservation.
Coming Soon: More Physics Tools
Additional physics calculators and problem solvers are in development.
Math
Astronomy
🌟 Clear Dark Sky
Professional astronomy weather forecasting service. Get detailed cloud cover, transparency, and seeing forecasts for optimal stargazing and astrophotography conditions at your location.
Hands-On Experiments
Interactive experiments to explore physical science concepts through hands-on activities.
Module 9: Waves and Sound
Experiment 9.1: Sound Wave Visualization
BeginnerQuestion: Can we see the effect of sound waves traveling through air?
Observe how sound waves travel through air by watching their effects on a candle flame and rice grains. This experiment demonstrates the physical nature of sound waves and their ability to transfer energy.
Experiment 9.2: Speed of Sound
IntermediateQuestion: How fast does sound travel through air?
Measure the speed of sound in air by timing how long it takes for sound to travel a known distance. Explore how environmental factors like temperature and humidity affect sound speed.
More Experiments Coming Soon!
Additional hands-on experiments from other modules will be added to help you explore physical science concepts.