Physical and Chemical Properties of Matter. Mr. Causey discusses physical properties and changes as well as chemical properties and changes. Physical changes result in NO NEW substances and chemical changes result in NEW substances (products) because of a chemical reaction. Tearing a piece of paper is a physical change but burning a piece of paper is a chemical change.
Categories: Gr 9-10 Science, Gr. 11-12 Biology
In DNA Interactive: Code, learn about the scientists who made the discoveries and the mistakes as the mystery of the DNA code was unraveled. This simulation may require a flash plugin. Thanks for... read more
Categories: Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science
By most standards, Earth has seven continents – Africa, Antarctica, Asia, Australia/Oceania, Europe, North America, and South America. A group of geologists believes we should recognize an eighth.... read more
Categories: Gr 7-8 Science & Tech, Gr 9-10 Science, Gr. 11-12 Physics
https://youtu.be/_k9egfWvb7Y How do you measure big forces accurately? By calibrating your force transducer on the world's biggest weight - 1,000,000 pounds of force. This machine ensures planes... read more
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