Ce sunt quarcurile

Quarks are the tiny parts that make up the world around us. Ruth Spiro links them to the way children play. Children use blocks to build towers and castles. Nature builds things from smaller parts.

This science book has pictures and is for very young children. It is part of a series for young children. The series makes hard science ideas clear at an early age. Fred Bortz helped with the series. He is an American physicist, a scientist who studies matter and energy. He writes science books for general readers.