Jenna Winterberg ; Illustrator : Timothy Bradley Winterberg, Jenna creator author. Bradley, Timothy Illustrator. text cau 2016 monographic eng

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32 pages : colour photographs ; 23 cm "You can't make something out of nothing. This is because there are certain laws that everything in the universe follows, including the conservation of mass. It may seem like magic, bit it's really a matter of matter."-- Provided by publisher. Something out of nothing -- Physical changes -- Chemical changes -- Systems -- Energy matters -- History of the law -- Words to know -- Mysterious matter -- Think like a scientist. Grades 4 to 6 juvenile Includes index Mass (Physics) Juvenile litersture Relativity (Physic) Juvenile literature 530.11 97814807472274 PPAK 190110 20190131105821.0 eng