"In these simple episodes, big, glossy color photos depicting a diverse crew of children and adults demonstrate how various kinds of simple machines can be helpful, or not, in performing common tasks. Noah, for instance, has a big pumpkin to move, and though his mother shows how a shovel's lever action can lift it, a small wagon actually allows him to wheel it away. Similarly, Liz (with a priceless expression on her face) stops her father from trying to move sliced tomatoes into a salad bowl with a sharp knife and instead tips the cutting board to accomplish the task more safely. Though the writing is occasionally unclear and explanations throughout of how the simple machines work are skimpy or, in some cases, missing altogether, newly emergent readers will come away with both a grasp of how simple machines differ from one another, as well as with some exposure to special terms like fulcrum and force. Each volume closes with an open-ended question ('How can you use a wedge?' for instance), and a perfunctory glossary and index. VERDICT: Suitable STEM selections for the youngest scientists."--School Library Journal, Series Made Simple
--JournalIs it easier to move ice with a lever or a screw? Readers will see how a group of kids compares two simple machines and decides which one does a better job at moving the ice. This book supports engineering design standards for primary grades in the Next Generation Science Standards.
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Descripción Condición: Very Good. Former library book; may include library markings. Used book that is in excellent condition. May show signs of wear or have minor defects. Nº de ref. del artículo: 8601080-75
Descripción Library Binding. Condición: Good. No Jacket. Former library book; Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less 0.4. Nº de ref. del artículo: G1467780294I3N10
Descripción Condición: Good. SHIPS FROM USA. Used books have different signs of use and do not include supplemental materials such as CDs, Dvds, Access Codes, charts or any other extra material. All used books might have various degrees of writing, highliting and wear and tear and possibly be an ex-library with the usual stickers and stamps. Dust Jackets are not guaranteed and when still present, they will have various degrees of tear and damage. All images are Stock Photos, not of the actual item. book. Nº de ref. del artículo: 26-1467780294-G
Descripción Condición: Good. SHIPS FROM USA. Used books have different signs of use and do not include supplemental materials such as CDs, Dvds, Access Codes, charts or any other extra material. All used books might have various degrees of writing, highliting and wear and tear and possibly be an ex-library with the usual stickers and stamps. Dust Jackets are not guaranteed and when still present, they will have various degrees of tear and damage. All images are Stock Photos, not of the actual item. book. Nº de ref. del artículo: 8-1467780294-G