Tall candle wil extinguish first because hot CO2 is less dense than air and so rises above it. 2C 30.65 Demonstrates terminal velocity and how mass affects it. Note which hits floor first. Drop 4 filters from head high, single filter from waist high. They should hit at nearly same time.
Water forms a vertex as it drains from one bottle into another.
Spin the water in top bottle so that it forms a vortex as it drains into lower bottle. Demonstrates the effect of a fluid's density on the velocity of an object in that fluid. 2. 2 marbles 3. Fill both cylinders with water. Add a moderate amount of salt to one of cylinders.