Using inexpensive materials (e.g., tape, paper clips), students build simple machines-such as levers, pulleys, spring scales, gears, wheels and axles, windmills, and wedges-that demonstrate how things work.
(students; build; simple machines-such as levers, pulleys, spring scales, gears, wheels and axles, windmills, and wedges-that demonstrate how things work) (simple machines-such as levers, pulleys, spring scales, gears, wheels and axles, windmills, and wedges; demonstrate; how things work) Context(simple machines - such as levers , pulleys , spring scales , gears , wheels and axles , windmills , and wedges demonstrate,List([70, 189))):(things; work; )
simple machines - such as levers , pulleys , spring scales , gears , wheels and axles , windmills , and wedges demonstrate,List([70, 189))
students simple machines-such as levers, pulleys, spring scales, gears, wheels and axles, windmills, and wedges things
build demonstrate work
simple machines-such as levers, pulleys, spring scales, gears, wheels and axles, windmills, and wedges-that demonstrate how things work
how things work