static review

Define static electricity (2 marks):
What is lightning (2 marks)?
Why does static electricity build up in winter air and not in summer air (2 marks)?
Name 2 insulators and 2 conductors (4 marks).
Look at the results of the electrostatics friction lab that you were working on (with the fur). What moved the most paper? What moved the fewest number of paper bits? (4 marks)
Why do you think you got those results? (2 marks for the reason, 4 marks for an explanation, 2 marks for an example)
Give an example of static electricity that you have seen in your life. (2 marks)

static electricity

Watch the clip. How do you think it happened? Think static electricity.

http://www.youtube.com/watch?v=gct1BmKNvU0&feature=related

Static Electricity with Bill Nye

This is a great one! Classic Bill Nye!

Notice the part about discharging, grounds and amber.


http://www.youtube.com/watch?v=d1ZdwyogAdE&feature=related

Tom Leher sings on YouTube

Just for fun,
the periodic table in song:

http://www.youtube.com/watch?v=DYW50F42ss8

Numbers of the Periodic Table and Bohr-Rutherford

For how to figure out a) the number of protons, electrons and neutrons and b) how to draw a Bohr-Rutherford diagram see this great site!

(The pictures here are good, but the site is even better!)

Also, if you click on the pictures, you can view the whole picture (it is a bit cropped in the blog)



http://www.tvdsb.on.ca/saunders/courses/Online/SNC1D/McIntosh/chemistry/bohr-rutherford_diagrams.htm

Periodic Table

Review the periodic table and its trends at:


http://chemistry.about.com/library/blperiodictable.htm



or click on the periodic table below from http://www.corrosionsource.com/handbook/periodic/periodic_table.gif !

ziploc chemical equation

For the observing changes lab (ziplock lab) we combined baking soda and calcium chloride. Use the internet to complete the chemical equation:


calcium chloride + sodium bicarbonate → _____________________

or

CaCl2 + 2 NaHCO3 → _________________________