Gardner, Robert, 1929-

How heavy is heavy? : science projects with weight / Robert Gardner ; illustrated by Tom Labaff. - 48 pages : color illustrations ; 24 cm. - Hot science experiments. . - Gardner, Robert, 1929- Hot science experiments. .

"Originally published as Heavy-Duty Science Projects with Weight in 2003."

Includes bibliographical references (page 46) and index.

Introduction -- Safety first -- Weighing in -- More weighing in -- Weight and position -- Gravity and different weights -- Measuring weight: a "spring" scale -- Weight and friction -- Becoming weightless -- Seesaws, weights, distances, and levers -- Levers to lift weight -- An inclined plane -- Measuring weight with a balance -- Can you weigh air? -- Weighing air -- Some effects of air's weight -- Defying gravity -- Defying gravity again -- Using a siphon to defy gravity -- Forces other than gravity.

"Simple science experiments about measurement of weight using everyday items with many experiments that can be turned into science fair projects."--

K to grade 3.

ISBN: 9780766066007 0766066002

LCCN: 2014027426

Subjects--Topical Terms:
Weight (Physics)--Experiments.
Measurement--Experiments.
Science projects.
Experiments.

Dewey Class. No.: 530.8/1/078