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This chapter shows that an electric current can make a magnet and can also produce heat. It then explains how cells and...

This chapter explains that good health means physical, mental and social well-being, not just the absence of disease. It covers healthy habits,...

This chapter takes us into the world we cannot see with the naked eye. It explains the cell as the basic unit...

This chapter shows how science is about finding out new facts, not just remembering old ones. Using a simple kitchen question —...