The expansion of gases. Baking soda and vinegar and a balloon over a container
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One famous science experiment is the double-slit experiment, which demonstrates the wave-particle duality of light. In this experiment, light is passed through two parallel slits, creating an interference pattern that suggests light behaves as both a wave and a particle.
Albert Einstein's most famous experiment was the photoelectric effect experiment, which helped confirm the particle nature of light and contributed to the development of quantum theory.
You call it an OBSERVATION.
Changing one variable at a time in a science experiment helps researchers to identify which specific variable is causing a change in the outcome. This allows for a clear understanding of cause and effect relationships and helps to draw accurate conclusions about the experiment. It also helps in controlling the experiment and minimizing confounding factors.
The hypothesis predicts the answer to a scientific experiment. It is a testable statement that guides the research process and can be either supported or rejected based on the results.
Alessandro Volta conducted his famous experiment in 1800. He demonstrated the first electrical battery, known as the voltaic pile, which laid the foundation for the field of electrochemistry.