Materials needed : For each student: wooden sticks, (i.e, popsicle, candied apple and chop sticks) one empty thread spool metal, plastic, cork and rubber washers rubberbands, assorted sizes For each group: set of slotted weights miniature parachutist small pan (plastic, from microwave dinners) with a hole for tying the string blocks spring scale For teacher's demonstrations: Two identical, cylindrical, glass bottles (with tops), filled with various quantities of water One wooden slope, at least as wide as the bottles, with sandpaper glued to the reverse side * and two 2" X 4" X 8" blocks The teacher wears a pair of jeans with worn knees and a shirt or sweater with worn elbows Various surfaces for lunar vehicle runway: smooth, * sandpaper, large frozen tray of ice, carpeting, etc.
(Materials; needed; ) (sandpaper; glued; to the reverse side) (The teacher; wears; a pair of jeans with worn knees and a shirt or sweater with worn elbows) (Two identical, cylindrical, glass bottles (with tops; filled; with various quantities of water)
Materials sandpaper The teacher Two identical, cylindrical, glass bottles (with tops
needed glued wears filled
to the reverse side
a pair of jeans with worn knees and a shirt or sweater with worn elbows
with various quantities of water