Wheels, pulleys & levers
Description
Looks at basic devices such as wheels, pulleys, levers, screws, and slopes, and suggests simple experiments and projects to demonstrate how they work. - from Amzon
ISBN(s)
1573351520, 9781573351522
Looks at basic devices such as wheels, pulleys, levers, screws, and slopes, and suggests simple experiments and projects to demonstrate how they work. - from Amzon
1573351520, 9781573351522
