Phase Changes Notes (pg207)
- PPTX
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This is a bundle of all of the resources I use to teach Unit 2: Chemistry in 8th grade. It includes worksheets, labs, PowerPoints, and even the Unit 2 Test. The pages range from 201-222 in students' binders. This means from Unit 2-Page 1, all the way to Unit 2-Page 22.Price $14.99Original Price $19.00Save $4.01
This bundle includes an entire year's worth of material. It includes lessons, labs, projects, tests and more. The seven units include are as follows:Unit 1 - Forces and MotionUnit 2 - ChemistryUnit 3 - GeneticsUnit 4 - EvolutionUnit 5- AstronomyUnit 6 - Earth's SystemsUnit 7 - Environmental ScienceTPrice $100.00Original Price $139.00Save $39.00
Description
Today we introduced the concept of “phase changes.” I began the lesson with a brief description of why certain molecules are magnetic. Water is, of course, the classic example. Because the electrons in the hydrogen atoms are bonded with the oxygen atom below, the top of a water molecule takes on a small positive charge, while the bottom takes on a small negative charge. This lesson is not necessarily part of the 8th grade curriculum, but it is important background for understanding phase changes.
After that, we went through a PowerPoint on phase changes (posted above). It explained all five phases of matter, why molecules tend to clump together, and the names of the four common phase changes (melting, freezing, boiling, and condensing). At the end of class, I decided to spice things up a bit with a dry ice demonstration.
