04/06/09

Who first arranged the periodic table?

04/07/09

Define a “period” and a “group” on the periodic table.

04/08/09

Compare the conductivity of metals, nonmetals, and metalloids.

04/09/09

Describe two properties of alkali metals.

04/14/09

What causes the properties of elements in a group to be similar?

04/15/09

What are three things Mendeleev used to arrange the periodic table?

04/16/09

Why was K more reactive than Na in the demo?

04/17/09

What is unique about elements with an atomic number greater than 92?

Happy Birthday, James!

04/21/09

Describe the difference between an ionic and covalent bond.

04/22/09

What is conductivity?

04/28/09

What is the law of electric charges?

04/29/09

Describe how an object is charged by friction.

04/30/09

Use the words friction and induction to describe getting a balloon to stick to the wall.

05/01/09

Draw and explain the electroscope.

05/04/09

Describe the three ways that lightning can occur.

05/05/09

¡ Viva Mexico !What is an electric current?

05/08/09

What is potential difference?

05/11/09

What is the difference between a cell and a battery?

05/12/09

What is the difference between AC and DC?

05/13/09

How does increasing the voltage affect the current?

05/18/09

What is the difference between a parallel and a series circuit?

05/20/09

What is a force?

05/21/09

What is the difference between speed and velocity?