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BLANK/LINED • Includes 24 small black dry erase markers and erasers with 48 hr CAP-OFF technology and 4-pack of large dry erase markers for the teacher • Markers conform to CPSIA and ASTM D-4326 standards and fit in the handles of the dry erase whiteboards and are certified non-toxic and low odor • 12" x 12" microfiber cleaning cloth
and protection for combat
UPC: 066960151985
they fall off and bump their heads
Simple Machines Pendulum Tropical Pink BLANK/LINED • Includes 24 smallMPN: 005646 UPC: 895452001466 As the pendulum swings back and forth, its energy changes from potential energy (the energy it has at the top of its swing, when it is raised up) into kinetic energy (the energy of motion). But the pendulum can be used as a device to explore other concepts as well. The time for one swing doesn't depend on the size of the swing or the mass at the end of the pendulum, only on the length. This is why the pendulum came to be
US$ 750.00
US$ 160.00
US$ 115.00
US$ 4500.00