About this item:
Students collaborate in small groups to build clocks that run from the power of water flow. They'll conceptualize and sketch their designs, practicing teamwork to incorporate everyone's ideas. They'll use a bell, yarn, and three stacked cups (7 oz, 3 oz, and 1 oz) to construct their water-powered clock.
Poke a hole in the 3 oz cup, place it inside the 7 oz cup. Poke another hole in the 1 oz cup and connect it to the bell with yarn. Place the 1 oz cup in the 3 oz cup and balance the bell on a popsicle stick resting on the rim of the 3 oz cup. Add 2 oz of water to the 3 oz cup and track the time it takes for the bell to fall off its popsicle stick perch.
Students adjust variables such as liquid density and amount to see how the time it takes to drop the bell is affected. Set includes everything needed for up to 24 students and lesson direction. The included lesson direction details setup instructions, activities by grade level, learning objectives, and teaching suggestions to expand lessons. Full contents list below. Recommended for Upper Elementary and up.
 
CHOKING HAZARD (1). Not for under 3 yrs.
 
Set includes:
Cups (1 oz), Set of 250
Paper Cups (3 oz), Set of 100
Plastic Cups (7 oz), Set of 50
Yarn, 180'L
Jingle Bells, Set of 72
Toothpicks, Set of 2,500
Popsicle Sticks, Set of 1,000
Lesson Direction