Physics explore the Physical World - why things do what they do.  Aristotle began asking such questions over 2,000 years ago and men are still asking them.  The more we learn, the more we realize how little we know.  This is a good place to start.
General Physics General Physics
     The vast majority of physics science kits and apparatus and are subject specific and thus will be found in the sections that follow.  However there are a few science kits for both individuals and schools that provide a general introduction to physics.  They include two or more subjects, such as light, sound, and magnetism.  You will find them in this section. 
force, motion and energy in physcis Force & Motion
This is a comprehensive section encompassing four fields of study:
1.  Fluid Dynamics - pressure, density, vacuum, displacement, etc.
2.  Sound and Wave Theory - frequency, wavelength, tuning forks, etc.
3.  Thermal Dynamics.- expansion, contraction, conductivity
4.  Energy and Force - inertia, acceleration, momentum, centrifugal force, gravity and more.
  These fields are often interrelated so we recommend that you explore all the pages.
Optical Science. Study of Light and Optics Light and Optics
     Light is the visible portion of the electromagnetic spectrum.  What we consider "white light" is actually a mixture of colors.  This extensive department explores refraction, reflection, color and even the speed of light.  Loaded with science kits and everything you need for experiments and science projects, such as prisms, lens, mirrors and more. 
   Related subjects include: magnifiers and other optical instruments (see Technology), Microscopes (Science) and Telescopes (Universe).
Magnetis and Electricity Magnetism & Electricity
    The Earth is a giant magnet, one surrounded by magnetic fields as shown in the picture at left.  In this department you will find a broad array of science kits and every type of magnet you can imagine - bar magnets, horseshoe magnets,  discs and even flexible magnets.  Electromagnetic principals are explored, but see Technology for electricity and electronics components and kits.
(Picture at left is magnetic field of earth)  
Motion and Mechanics Simple Machines
     Levers, pulleys, gears. wheels and inclined plane.  Lots of interesting areas to explore.  A great area for science projects and many things for the science fair.  .

Elsewhere
   We supports this sections with books and posters, listed in our sister sites.  They open in a new window, so can you can freely move between them without losing your place.