THIS DAY IN SCIENCE: 1st US Patent is for a 'Potash Process' (Hopkins) in 1790

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What is entropy?

What is entropy?

  There’s a concept that’s crucial to chemistry and physics. It helps explain why physical processes go one way and not the other: why ice melts, why cream spreads in coffee, why air leaks out of a punctured tire. It’s entropy, and it’s notoriously difficult to...
Dealing with Heat in Outer Space

Dealing with Heat in Outer Space

Written by Kyle Fraser How does the cooling system of an astronaut’s spacesuit work?  In this lesson plan, the students will learn about the strategies astronauts currently use to manage their body temperatures to survive the extreme environment of outer space....
Is It Hot Enough for You Yet?

Is It Hot Enough for You Yet?

The sun is the principal source of energy for the earth. Inquiry Skills Used Initiating & Planning: questioning Performing & Recording: organizing data on a chart Analysing and Interpreting: drawing conclusions based on information gathered Communicating: oral...
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