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Gilbert cloud chamber, assembled An alternative view of kit contents. The lab contained a cloud chamber allowing the viewer to watch alpha particles traveling at 12,000 miles per second (19,000,000 m/s), a spinthariscope showing the results of radioactive disintegration on a fluorescent screen, and an electroscope measuring the radioactivity of different substances in the set.
Salter Science was a brand of science kits sold by Thomas Salter Ltd., a Scotland-based company which manufactured toys and science activity kits for children. [1] Kits included activities with electricity, microscopy, magnetism and crystal gardens, but the company is probably best known for their chemistry sets. The company also produced other ...
Many chemistry kits are single use, containing only the types and amounts of chemicals for a specific application. [ 14 ] [ 15 ] Several authors note from the 1980s on, concerns about illegal drug production, terrorism , and legal liability have led to chemistry sets becoming increasingly bland and unexciting.
STEM learning might sound like some kind of fad simply because the acronym is fairly new, but the truth is that kids are hard-wired to find these academic disciplines (science, technology ...
Geology Bundle Science Kits. You can’t go wrong with this set of three geology science kits. There’s a crystal-growing lab that includes a light-up base for kids to display their colorful ...
Chalcolithic Age (copper age) beginning about 7,000 years ago: copper, gold, silver, mercury. In the early Bronze Age, lead was used with antimony and arsenic. [2] The use of meteoric iron–nickel alloy has been traced as far back as 3500 BC. Iron Age, Ancient Near East (1300–600 BC), India (1200–200 BC), Europe (1200 BC – 400 AD).
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