Pressure Melting of Ice: While-U-Wait
Learners demonstrates one of the few cases in which geologic solids visibly deform at room conditions. They suspend a weight on a thin wire over an ice cube to observe its effects over time.
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How Sublime: Exploring and Measuring the Triple Point of Dry Ice
Solid, liquid, or gas? Or all three? Young chemists make observations of dry ice and measure the pressure associated with its triple point. Pre-lab exercises include drawing Lewis structures and explaining bonding theories. An...
7th - 12th Science CCSS: Designed
2009 U.S. National Chemistry Olympiad National Exam - Part I
The 2009 version of the first part of a national chemistry competition is posted for your use with olympiad hopefuls. Test takers deal with 60 multiple choice questions covering an entire year of chemistry curriculum. Use this to...
9th - 12th Science
2000 U.S. National Chemistry Olympiad National Exam - Part I
The National Chemistry Olympiad exams are comprehensive tests covering an entire year of chemistry concepts. You can use them as practice for competing in the challenge, or simply as a review, or as an actual final exam for your general...
9th - 12th Science
Does Pressure Melt Ice?
Explore regelation of ice through a video demonstration. Applying pressure to a block of ice with a wire lowers the melting point and causes the ice to melt. As soon as the wire passes through, the water returns to its solid state as ice...
2 mins 9th - Higher Ed Science CCSS: Adaptable
Ice Cutting Experiment - Introduction
Race copper and fishing line through a block of ice. After establishing the effect of pressure on melting points, the instructor experiments with two different substances. Ultimately, the better conductor melts the ice faster.
1 min 9th - Higher Ed Science CCSS: Adaptable
New Review How Do Glaciers Move?
A glacier is like a river of ice. An interesting lesson explores how solid glaciers manage to flow. The video instructor explains how the pressure of the weight of the ice decreases the melting point, allowing the glacier to move.
7 mins 6th - 12th Science CCSS: Adaptable