This is my finished lab reports: 5 Mini Labs Lab Report By: Nikki Dellemonico Period 4. You can write down the number of drops you add if you like. In this project, you will put droplets of water on a penny, like in Figure 1. All you need is a cup of water, a penny, and a medicine dropper. The purpose of our experiment was to see which liquid has the most surface tension: water, soapy water, or vegetable oil. Surface tension refers to water's ability to stick to itself. Get ready to add this simple penny lab activity, to your science activities this season. Fill empty 100-mL beaker with 30-mL water. 1. Once the water has reached the edge of the penny, a dome shape begins to form. Introduction Subscribers get more award-winning coverage of advances in science & technology. A soapy science activity from Science Buddies, Key concepts Penny Lab Answers Destul De. In this lesson and its associated activity students conduct a simple test to determine how many drops of each of three liquids can be placed on a penny before spilling over. Fill a glass, cup or small bowl with tap water. This weak attraction and “sticking together” of polar, All life depends upon the unique features of water which result from its polar nature and. Make a guess about how many you think will fit on a penny. Repeat steps 2-4 two more times and record your results for “Run 2” and “Run 3.” 6. In this activity you will see how soap decreases the surface tension of water by putting water droplets on top of a penny. Grab a small bowl of water. Causes of Surface Tension . Question: How does soap affect the water's surface tension? In order for water to flow more easily into these small spaces, you need to decrease its surface tension. Page 1 of 13 KWAME NKRUMAH UNIVERSITY OF SCIENCE AND TECHNOLOGY DEPARTMENT OF CHEMISTRY YEAR TWO (CHEM 270) PRACTICAL CHEMISTRY IV P.2.2.1 REPORT TITLE: SURFACE TENSION NAME: OPOKU ERNEST EXPERIMENT: P.2.2.1 DATE: 14TH MARCH, 2014 2. Have you wondered how many drops of water can fit on a penny? Surface tension can be measured and observed by dropping water (drop by drop) onto a penny. More to explore Try this activity to learn more! Questions: How many drops, of the size produced by your pipette, are in each mL of water? Learn about surface tension of water with penny drops. Surface tension is a phenomenon in which the surface of a liquid, where the liquid is in contact with a gas, acts as a thin elastic sheet. 1. Composition Of A Penny Lab Fy11 Kent City School. Hold the medicine dropper just above the top of the penny (not touching it) so each new drop has to fall a short distance before it merges with the drop on the penny. Introduction: Surface tension refers to water's ability to "stick to itself". Test it out, counting aloud as you slowly add a drop at a time. The cohesion and surface tension of water becomes apparent when the drops of water you add to the penny reach the penny’s edge. June 24th, 2015 - Measure Surface Tension with a Penny A soapy science activity from Science Buddies Surface Tension: Liquids Stick Together During the lab, the measurements (number of drops on a penny before spilling) may be affected by the cleanliness of the penny You can either clean all pennies (make sure all soap is gone too!) … This preview shows page 1 - 2 out of 4 pages. Part A: Perform a CONTROL test for comparison with later results. Scientific Method With Drops On A Penny Lab 6th Grade Prezi. Rubric . Water has very unique properties, and this experiment puts them to the test!. 4. 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