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Refraction Lab
Pick two materials and an angle to watch light bend, with Snell's law, the speed of light in each, the critical angle and total internal reflection worked out.
SNC2D ScienceUsed in 3 lessons
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SNC2DRay Optics Lab
Drag an object in front of a curved mirror or lens to trace the principal rays and see where the image forms, with its size, attitude, location and type checked by the mirror and lens equation.
Used in 4 lessons

SNC2DEquation Balancer
Change the coefficients of 24 real reactions and watch a live atom inventory (and the molecules themselves) until every element balances in lowest terms.
Used in 2 lessons

SNC2DGreenhouse Lab
Change CO₂ and albedo in a one-layer energy-balance model and see sunlight, reflection and infrared flows and the temperature Earth's surface settles at, compared with no greenhouse effect.
Used in 2 lessons