| Machines: Grades 7-12 Contributor(s): Marson, Peg Nazari (Illustrator), Marson, Ronald Jay (Author) |
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ISBN: 0941008991 ISBN-13: 9780941008990 Publisher: Tops Learning Systems OUR PRICE: $20.85 Product Type: Paperback Published: April 2019 |
| Additional Information |
| BISAC Categories: - Technology & Engineering | Mechanical - Education | Curricula |
| Series: Task Card |
| Physical Information: 0.11" H x 8.5" W x 11" (0.33 lbs) 54 pages |
| Descriptions, Reviews, Etc. |
| Publisher Description: Employ the TOPS advantage: build fun stuff with simple things. Devise levers, pulleys, reinvent the wheel, check gear ratios, calculate horsepower, win a tug-of-war. Use spring scales to weigh loads, measure effort, and calculate efficiency. Discover that machines save effort, but never reduce work |