2 Does scientific knowledge change over time? Read how people explored the shape of the Earth and answer Jenny’s questions.
Long, long time ago
About 2600 years ago
Later, people observed one thing: When they were standing on land and watching a ship sailing in their direction, they could see its pole first before seeing its body. If the land was flat, this phenomenon could not be explained. Therefore, the ‘Round Earth Theory’ appeared.
People believed in the ‘Flat EarthTheory’ and thought that the land was flat.
Reading to Learn Science for You Do you want to know more examples of scientific knowledge being changed when new evidence appeared? Let’s read ‘From the Earth- centred Theory to the Sun-centred Theory’ together! Appendix 1
Why did people later overturn the previous belief of ‘Land was flat’?
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