Science Struck
Science Struck: An in Depth Comparison of Cohesion vs. Adhesion
Explains what cohesion and adhesion are; what their effects are in a liquid; what surface tension, a meniscus, and capillary action are; and gives examples of where one can observe cohesion and adhesion.
Science Struck
Science Struck: The Concept and Meaning of Capillary Action
Defines capillary action and discusses its applications. The physics of surface tension, cohesion, and adhesion are explained and a simple experiment is provided. Includes a number of examples where capillary action takes place.
Bill Nye
Bill Nye: Float Your Metal Boat
This experiment from Bill Nye shows that breaking the surface tension of a body of water can provide enough energy to propel a boat (or an insect!).
US Geological Survey
Usgs: Capillary Action
Capillary is described and explained. It is related to surface tension. Examples in botany and human physiology are given.
Alabama Learning Exchange
Alex: Magic Milk
This lesson plan is designed to engage students in a discussion and demonstration of molecules, surface tension, and bonding. Students will use hands on materials as well as technology. This lesson plan shows how a solution works to...
PBS
Pbs Teachers: Soap Powered Boat Experiment
Examine surface tension by floating an index card that has been cut into a boat shape on water, then dropping liquid soap near the "engine" section of the index card.
TOPS Learning Systems
Tops Learning Systems: Top Science: Water Domes [Pdf]
Investigate the cohesive tension on the surface of water.
Science Education Resource Center at Carleton College
Serc: Walking on Water How Do Water Striders Do It?
This activity is designed for students to get a first look at water tension. It also allows them to make a model and test a situation seen in nature with materials that are readily available.
TeachEngineering
Teach Engineering: Penny Perfect Properties (Solid Liquid Interactions)
Students investigate the property dependence between liquid and solid interfaces and determine observable differences in how liquids react to different solid surfaces. They compare copper pennies and plastic "coins" as the two test...
TeachEngineering
Teach Engineering: Investigating Contact Angle
Students observe how water acts differently when placed on hydrophilic and hydrophobic surfaces. They determine which coatings are best to cause surfaces to shed water quickly or reduce the "fogging" caused by condensation.
TeachEngineering
Teach Engineering: Exploring the Lotus Effect
Students test and observe the "self-cleaning" lotus effect using a lotus leaf and cloth treated with a synthetic lotus-like superhydrophobic coating. They also observe the Wenzel and Cassie Baxter wetting states by creating and...
Michael Blaber, PhD
Fsu: Properties of Liquids: Viscosity and Surface Tension
This article from the Florida State University provides a basic definition of viscosity and it origin in liquids.
PBS
Pbs Teachers: Scientific American: Science Safari: Fighting Malaria
Explore the issues surrounding the mosquito infestations. Investigate surface tension to explain how the egg rafts stay afloat and mosquitoes are able to stand on the water's surface, and review proper disposal of automobile tires.
Science Bob Pflugfelder
Science Bob: Make a Paper Clip Float [Pdf]
Science activity demonstrates how surface tension is used to suspend a paperclip on the surface of water.
PBS
Pbs Teachers: Flying High: Taking to the Air
Explore the science of surface tension, the evolution of flight in insects and insects' anatomical adaptations. Construct insect models that illustrate the action of these adaptations and calculate the force per unit area of water surface.
PBS
Pbs Teachers: Floating Paper Clips Experiment
Explore surface tension in water by making a paper clip float.
PBS
Pbs Teachers: Salt and Pepper Experiment
Demonstrate surface tension by sprinkling pepper on a bowl full of water, then touching a soapy finger to the water.
Exploratorium
Exploratorium: Science Snacks: Bubble Tray: Create Giant Bubbles
With this fun bubble tray experiment, students create giant bubbles and learn about surface tension and light interference.
Bill Nye
Bill Nye: Float You Metal Boat
Try this at-home science experiment to learn how surface tension makes things move.
TeachEngineering
Teach Engineering: How Many Drops?
In this lesson and its associated activity, middle schoolers conduct a simple test to determine how many drops of each of three liquids can be placed on a penny before spilling over. The three liquids are water, rubbing alcohol, and...
TeachEngineering
Teach Engineering: Students as Scientists
This curricular unit contains two lessons that let students actually do the work of scientists as they design their own experiments to answer questions they generate. In the first lesson and its associated activity, students conduct a...
University of South Florida
Fcat: Drops on a Penny: Teacher Notes
Students learn how to create stem-and-leaf diagrams and boxplots by collecting data on the surface tension of water molecules. This hands-on activity using pennies is a great way to learn how to organize data.
Texas Education Agency
Texas Gateway: Ap Physics: Fluid Statics: Conceptual Questions
This is a list of 39 questions covering the concepts presented in Chapter 11: Fluid Statics from the AP Physics online text.
Texas Education Agency
Texas Gateway: Ap Physics: Fluid Statics: Problems and Exercises
This is a list of 83 problems/exercises to solve based on the content in Chapter ll: Fluid Statics from the AP Physics online text.
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