Animals: Structure and Function

Groups of organs with specific structures and functions work together as systems, which interact with other systems in the body.
The development and uses of technology to maintain human health are based, in part, on the changing needs of society.

Tuesday, March 31, 2015

Charging by Induction

Today we took up homework questions on p. 482.
Grade 9s learned how to use a negatively charged balloon to induce a non-permanent charge on a stream of water. They also learned how to use a charged object to induce a permanent charge on a neutral object. The big ideas from today's lesson are that:
  • charging by conduction produces two object with the same charge
  • charging by induction produces two objects with opposite charges

Homework & Reminders:
  • Powder Coating research is past due
  • Complete questions on p. 489
  • Complete the analysis and application sections of Bending Water
  • April 2 - Study Hall - We will use some of this time for extra science classes, including review work for next week's test
  • April 3 - Good Friday, No school
  • April 6 - Easter Monday, No school
  • April 7 - Electricity test
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