WebHold your dropper about ½ inch above the penny at a steep angle and slowly add drops of water to the surface of the penny until it overflows--count this as any time the water goes off of the edge. 4. Record the number of drops of water the surface of the penny can hold in the table on the next page under the column labeled “Run 1.” 5. Web1. Rinse a penny in tap water. Dry it completely with a paper towel. 2. Examine the penny and consider how many water drops you think will fit on the penny. Write down your guess. 3. Place the penny on a flat surface that can get wet, such as a kitchen counter. 4. Fill a small glass or bowl with water. 5.
Surface Tension: Liquids Stick Together - Stanford University
WebPlace a coin on a table or desk. Holding the eyedropper close to the surface of the coin, carefully squeeze water droplets onto the coin, one at a time. The droplets should pool up on the coin, creating a big droplet of water. Get the students to count the drops. Stop squeezing when the droplet on the coin breaks up and overflows. WebHow many drops will stay on the face of a penny without spilling water off the sides? Repeat the experiment, say, three times. The number of drops will probably come out about the … kenneth cox syracuse
Measure Surface Tension with a Penny - Scientific American
WebNov 16, 2024 · Fill your pipette with water. Starting squeezing drops onto a coin, counting each one. 1. Wash your coins with soap and water. 2. Lay your coins on a flat surface, and keep a paper towel nearby. 4 ... WebDrops of Water on a Penny Adhesion and Cohesion NGSS 5-PS1-1 and 5-PS1-3 by Teaching Science With Lynda R Williams 5.0 (43) $3.00 PDF This lesson takes the students through a hands-on experiment in which they test different liquids by dropping them on pennies to learn about the properties of water: cohesion and adhesion. WebApr 26, 2024 · How many drops of water can fit on a penny answer? ... How many drops of milk can fit on a penny? Data Analysis. The data clearly shows that water was able to fit the most drops on the surface of a penny. The average number of drops were: water-58, olive oil- 20, and milk- 35. ... kenneth cox youtube