05 June 2023

Fossil in a Rock


 I have shown students fossils before but it wasn't until I showed the students this fossil in a rock that they really understood how fossils were made and how they were found. Seeing is believing.

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“Why the Rate-Determining Step Is Not Always Obvious” A-Level Chemistry

  “Why the Rate-Determining Step Is Not Always Obvious” A student sees a three-step mechanism and immediately chooses the slowest-looking s...