Texas Instruments
Texas Instruments: Freezing and Melting of Water
Freezing temperature, the temperature at which a substance turns from liquid to solid, and melting temperature, the temperature at which a substance turns from a solid to a liquid, are characteristic physical properties. In this...
Other
Science Alive: Melting Point Simulation
Percy Julian and Josef Pikl used the fact that melting point-the temperature at which a substance changes from a solid to a liquid-is a characteristic property of a substance to prove that the British chemist Robert Robinson could not...
University of Maryland
Lowering the Freezing Point of Water Using Salt
A page from the University of Maryland Physics Lecture Demonstration Facility. Provides directions for a teacher demonstration of the effect of an ionic solute upon the freezing point of water. Shows apparatus and set-up; provides...
Texas Instruments
Texas Instruments: How Low Can You Go?
In this activity, Students can use an EasyTemp temperature probe to determine the normal melting temperature of ice. They will then study how the addition of salt to the melting ice affects its melting temperature. They will finally...
E-learning for Kids
E Learning for Kids: Science: Kaap De Goede Hoop: Why Do Changes in State Take Place?
Zander is on a camping trip. Join him, and help him learn about boiling and melting points.
Massachusetts Institute of Technology
Mit: Blossoms: Will an Ice Cube Melt Faster in Freshwater or Saltwater?
Engage young scholars in the study of the ocean and saltwater with these activities. Students will see that saltwater has different physical properties than freshwater - mainly density. This instructional activity can serve as a...
Other
Howto smile.org: From Gas to Liquid to Solid
Allow your learners to explore states of matter as they learn what causes frost to form on the outside of a cold container. Students will observe how liquid water can change to ice or water vapor in this lab. Lesson includes background...
TeachEngineering
Teach Engineering: What Is the Best Insulator: Air, Styrofoam, Foil, or Cotton?
That heat flows from hot to cold is an unfortunate truth of life. People have put a lot of effort into stopping this fact, however all they have been able to do is slow the process. Working in groups of three to four, students will...
PBS
Pbs Teachers: Rising Ice Experiment
Observe how ice and salt crystals interact by using salt to help adhere a string to the top of an ice cube in a glass of water, then lift the cube out of the water.
Other
Fund. Of Phys. Geography/energy, Temperature, and Heat
A page describing (in part) the distinction between energy, temperature and heat. Includes a graphic illustrating the quantity of energy needed to transform water between various states. Methods of thermal energy transfer (convection,...
E-learning for Kids
E Learning for Kids: Science: Loch Ness: What Happens When Solids and Liquids Are Heated or Cooled?
Students will look at what happens to different types of matter when they have a change of state.