Current+affairs

Describe what is needed to make a current flow and how to measure current. Describe how the resistance of a circuit affects the current.
 * Objectives (what you will learn this lesson)**

Review homework / key term quiz
 * Starter**

> media type="file" key="ES7_Ja136_05ani.swf" width="600" height="480" > a. Build a simple circuit with a battery, bulb and an ammeter (switch is optional). Draw a diagram. > b. Now add a resistor. Draw a second diagram of your circuit > c. Describe the changes the resistor caused.
 * Activities**
 * 1) Try to work out the correct combination of [[file:dcsks3science/ES7_CHAP_Ja4.pdf|Circuit diagrams and symbols]] on your own. Leave the correct completed match on your desk you might need to refer back to it later.
 * 2) Build the circuits show in [[file:dcsks3science/ES7_CHAP_Ja3.pdf|Measuring current]]. Ask for help if you get stuck, Copy and complete the summary gapfill at the bottom of the sheet in your exercise book along with a diagram of __one circuit__ including the current reading.
 * 3) Complete [[file:dcsks3science/ES7_CHAP_Ja2.pdf|Current affairs]] and stick it in your exercise book.
 * 4) How resistors and bulbs work? Take part in the role play to find out
 * 5) How do resistors affect circuits? Look through the animation to find out
 * 1) How do resistors work?
 * 1) Extension: Read and complete [[file:dcsks3science/ES7_CHAP_Ja8.pdf|Combinations of switches]]. Build your circuits to test your designs.

Review completed classwork / key term quiz Look through and describe the mistake in each circuit. Work in teams of three and assign one person to write the answers down. See how many you can get right. How fast can you complete the [|drag and drop activity] on different electrical components?
 * Summary**

Draw the. Print off your work and stick it in your exercise book. If you can't print draw the circuits by hand using a ruler.
 * Homework**