Count in order, by skip count or backwards... Locate multiples of numbers... Identify even, odd and prime numbers... Generate your own complete number grids.
Bridges are grouped into five main families. Simulate each type of bridge with an original sensory approach. Distinguish between compressive forces and tension forces.
Simulate different excitation levels of the hydrogen atom and observe its emission spectrum... Watch the emission and absorption spectra of all atoms of the periodic table... Test your knowledge of spectra with the a quiz.
Distinguish between major families of bridges... Distort the bridge structure and observe the distribution of sudden forces (stresses) on different elements.