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Categorized videos showing interesting experiments and movie clips.
Solving word problems step by step.
A tool for conversion between units of physical quantities
Simple polyphonic rhythms, with 'musical instruments' available to children.
People and events shown in a dynamic timeline and relations view.
A collection of fascinating astronomical images.
Overview of the celestial bodies of our Solar System with three-dimensional display.
A collection of mathematical and physical functions, formulae and explanatory illustrations.
Exciting game in a realistic physical environment to observe motions and forces.
Create simple circuits and measurements with the help of devices of variable parameters.
Examine refractions with optical lenses, mirrors and rays!
Everything that is worth knowing about colors.
A quick and simple way to create spectacular diagrams from built-in templates.
A selection of fascinating images from the NASA archives.
Answer quiz questions on 12 different topics with increasing level of difficulty.
Interactive test editor and player.
Multi-player quiz game with various types of popular games.
A categorized collection of 3D models with a spectacular search interface.
Simple question sheet with text and pictures; multiple choice questions with a single or multiple correct......
Basic and scientific 'paper tape' calculator.
Customizable analog and digital clocks with exact time display and exciting exercises.
Portrait and information about famous people.
The periodic table with many useful filters and sorting features.
Plotting points, lines, circles and functions in the coordinate system.