MBSS Fireworks 

MBSS Fireworks displays photo-realistic 3D animated fireworks with stereo sound effects any time of the year. Define a complete fireworks show including hue transitions, atmospheric conditions, gravity, burst styles and many other properties.
fireworks sparks shells burst launch light stars 3d animation particles space

Making Waves 

Making Waves is an interactive physics package that helps students visualize and understand the motion and interference of transverse and longitudinal waves.
amplitude frequency interference longitudinal phase pulse superposition transverse wave wavelength