What is the chemical composition of water?
What percentage of the Earth's surface is covered by water?
Which is the deepest ocean in the world?
Which river is the longest in the world?
What property of water allows ice to float on its surface?
What is the process called when water changes from a liquid to a gas?
Створюйте онлайн-тести
для контролю знань і залучення учнів
до активної роботи у класі та вдома