Texas Instruments
Texas Instruments: Investigating of P H and Conductivity During a Titration of A
In this investigation sulfuric acid will be added to a solution of Ba(OH)2 using a pH probe and a conductivity probe. From this process the pH of first and second equivalence points will be determined along with mapping the conductivity...
Science Education Resource Center at Carleton College
Serc: Group and Periodic Properties Lab
Learners observe and perform experiments with sodium, potassium, calcium, magnesium, sulfur ,and phosphorus. The discover trends down groups, across periods, and having to do with the pH of metal oxides vs. nonmetal oxides.
Other
University of Siegen: An Endothermic Reaction
This resource provides information on a rather interesting spontaneous endothermic reaction, involving cobalt (II) chloride and thionyl chloride.
National Earth Science Teachers Association
Windows on the Universe: Air on Venus
Windows to the Universe offers a description of Venus' atmosphere, including what it is made of and why it is so hot and thick.
National Inventors Hall of Fame
National Inventors Hall of Fame: Charles Goodyear
Charles Goodyear made improvements in India-rubber fabrics which eventually lead to the formation of tires. The National Inventors Hall of Fame website contains a short biography about this inventor.
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