Home experiments connected to ideas about light, energy, electrons and waves.
Light is made of photons and can be split into colors of different energy.
Photons change direction when they pass from air into water. That is called refraction.
Matter carries electric charges. Electrons can make objects attract each other.
Electrons travel through a circuit and the LED uses semiconductor materials.
Light can turn into electricity. This relates to the photoelectric effect.
Some materials absorb photons and emit others. That is called fluorescence.
Some materials store energy and release it slowly as light.
It's an analogy: in quantum physics, some particles can also behave like waves.
It's an analogy for probability: in quantum physics, many outcomes can only be predicted as possibilities.
The colors appear from the interference of light. Quantum physics studies light as both wave and particle.