Welcome to our new topic!
Most of this week we are spending on introductory electricity labs.
These labs are meant to focus us on the basics and gain a thorough understanding of the basics of electricity.
lab #1: intro circuits
The core idea here is that you need a complete "circuit" or electrical loop in order for a bulb to light. The battery has two terminals, and so does the light bulb. The in-out path as shown in the diagram.
lab #2: conductors and insulators
Some materials (like wires) conduct electricity quite well. Other things, like plastic, don't.
This lab examines some materials to help you determine what conducts and what insulates, and what conducts sortof.
This will help us to understand how a light bulb is constructed in the next lab.
lab #3: how a lightbulb works.
In this lab we examine a few different light bulbs to try to gain an understanding of what is happening in them. The lab asks you to draw a cut-away view of a bulb so that you can see the various components and what is connected to what. 
Then test the pieces to see what are insulators and what are conductors.
Especially important is how the filament is connected to the base of the bulb.
You MUST show clearly how the TWO parts of the lightbulb base connect to the TWO ends of the filament.
The fourth lab will involve a more thorough understanding of what's going on in the wires.
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