Big Ideas: Atoms are not indivisible - they have their own structure. More info...
Browse worksheets, ideas, lesson plans and more for students aged 5-19 and narrow your search using the filters below.
Demonstration: this demonstration shows students that light has a particle property: it packages its energy in small packets...
Demonstration: A little something to enliven teaching the photoelectric effect.
No sooner do students see that light has a wave property (and have measured its wavelength) then this story is upset with...
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