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Language: en
Pages: 35
Pages: 35
Type: BOOK - Published: 2017-07-03 - Publisher: Teacher Created Materials
During the 20th century, many things were invented that made people's lives easier. Vacuum cleaners and washing machines made doing chores easier. Vaccines and
Language: en
Pages: 35
Pages: 35
Type: BOOK - Published: 2019-11-01 - Publisher: Teacher Created Materials
Language: en
Pages: 260
Pages: 260
Type: BOOK - Published: 2002-05 - Publisher: NYU Press
It's the perfect gift book for every inventor and tinker in your life!"Remarkable . . . get the book for yourself. It'll hold you for many hours." (Wall Street
Language: en
Pages: 0
Pages: 0
Type: BOOK - Published: 2008-08-11 - Publisher: Paw Prints
Language: en
Pages: 73
Pages: 73
Type: BOOK - Published: 2007 - Publisher: Infobase Publishing
Presents inventions from the twentieth-century including the microwave, cellophane, assembly lines, and more.