🔬 Science · Space Exploration
Changing Ideas About Space
Understand that ideas about the solar system changed over time: ancient people believed Earth was at the centre (geocentric model, Ptolemy), until Copernicus proposed the Sun was at the centre (heliocentric model), later confirmed by Galileo’s telescope observations
Typical age: 9–11 years
“Can your child tell you that people used to think the Sun went around the Earth, and explain how scientists like Copernicus and Galileo changed our understanding?”
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