Captain James Cook (1728–1779) was a famous British explorer. On his journey to the Arctic Ocean, he kept a journal and recorded his observations about Arctic ice. Today, scientists use Captain Cook’s notes to understand how sea ice in the Arctic is changing. You, too, can record your observations in a science journal. Who will read about your discoveries in the future?
What happens when a lake grows and shrinks according to the season? How do people live and work on a lake that’s always moving its shores? Residents on Tonlé Sap in Cambodia solved this problem by building a floating village. Imagine you are building a brand new floating village. What do you think would be good building materials? Use the scientific method to think about different ways to make a cardboard structure float.