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Use this electromagnetic spectrum explorer to slide from radio waves to gamma rays. Watch wavelength, frequency, photon energy, examples, uses, and safety ideas update in real time. How to use the electromagnetic spectrum explorer 1 Drag across the spectrum Move the slider from radio waves to gamma rays. The selected wave type changes on the … Read more
Use this moon phases learning tool to see why the Moon appears to change shape during a lunar month. Drag the Moon around Earth and compare New Moon, waxing crescent, First Quarter, waxing gibbous, Full Moon, waning gibbous, Last Quarter, and waning crescent. How to use the moon phases learning tool 1 Drag the Moon … Read more
When you look at pictures of telescopes, you may notice that some have long tubes with lenses, while others have shorter tubes with mirrors. These two designs represent the two main types of telescopes: refracting telescopes and reflecting telescopes. Both are designed to collect light from distant objects and make them appear larger and brighter, … Read more
Use this potential and kinetic energy simulator to move a ball down a smooth slope. Watch height, speed, potential energy, kinetic energy, and total energy change together. How to use the potential and kinetic energy simulator 1 Move the ball Use the position slider to move the ball from the top of the slope to … Read more
Water can contain suspended materials such as soil, dust, tiny pieces of leaves, sediment, colouring, and other particles. A water filtration DIY kit provides a hands-on way to investigate how several filtering materials work together to separate some of these substances from water. Instead of using a homemade bottle, the kit uses a transparent filtration … Read more
Use this simple pendulum simulator to explore how string length, bob mass, starting angle, gravity, and damping affect a swinging pendulum. Watch the animation, compare energy changes, and study the angle versus time graph. How to use the simple pendulum simulator 1 Set the string length Move the length slider and watch how the period … Read more
Use this interactive conic section tool to explore circle equations, then compare them with an ellipse, parabola, and hyperbola. Move the sliders to see how the general equation and graph change together. How to use the circle equations and conic section explorer 1 Start with a circle Choose Circle to see how center and radius … Read more
Use this multi-shape area calculator to find the area of a square, rectangle, triangle, circle, semicircle, parallelogram, trapezoid, or ellipse. Each answer includes a diagram, formula, square units, and step-by-step calculation. How to use the area calculator 1 Choose a shape Select square, rectangle, triangle, circle, semicircle, parallelogram, trapezoid, or ellipse. 2 Enter measurements The … Read more
Explore the interactive periodic table of elements by clicking any element tile. The tool shows quick facts, atomic structure, electron configuration, physical properties, real-life uses, fun facts, and related chemistry articles. How to use the interactive periodic table of elements Start by choosing an element from the colorful table. The side panel opens with the … Read more
Use this projectile motion calculator to explore how launch speed, launch angle, starting height, and gravity affect the path of an object. The interactive diagram shows the trajectory, range, time of flight, maximum height, and velocity components. How to use the projectile motion tool 1 Set the launch speed Choose the initial speed v0. A … Read more