The Tips and Helpful Words explain the scientific details easily while reading the Story.
Long ago, people used to think that the Earth was flat and plain-shaped everywhere. But someone asked “Is that really so?”, and more discovery led to the realization that the Earth is round like a ball. It is important that we ask questions about what we take for granted and how we tend to think. What kind of questions, then, did scientists ask lately? And what did they find out?
Table of Helpful words
● Do other planets have land and sea?
● What does the sea floor look like?
● Why does hot water come out of the ocean floor?
● Did land and sea look the same as they do today?
● What is the evidence that all continents used to be one landmass?
● Did the ground split slowly or quickly?
● What would happen when the ocean floor splits quickly?
● How much water is there inside the Earth?
● How did layered sedimentary rocks form?
● How did fos
