9 October - 15 October

FOCUS / ARONGA learning intentions:

We are EXPLORING on recognising how electricity works.

We are EXPLORING on experimenting how electricity work.

We are EXPLORING on reading information about electricity and connecting our understanding of it.

Success Criteria: I can...

• Write answers to questions about electricity.
• Create an electric circuit.
• Connect information about electricity.
• Read an article about electricity.

                                                                                                     Achievement Objectives:

Explore, describe, and represent patterns and trends for everyday examples of physical phenomena, such as electricity.

• The students will first watch this   about how electricity works.
• Then they will see a list of elements with the number of electrons in each shell. They will need to decide how many electrons need to be added or removed in order to create complete shells. Also, they will have to draw the elements and electron shells for each one.
• Afterwards, they will see several different types of materials. They will need to write next to each one whether it will be a conductor, semiconductor or an insulator.
• Finally, they will draw, design and label your own electricity themed costume for festivals and celebrations.

                                                                                                                     Tuesday

The students will first watch this   about the big misconception about electricity.

• In their science books the students will write and answer the questions below:

• 1. Before you read this, what is electricity? 

  2. List stories, films, books which show electricity in them.

  3. What similarities or consistencies are there between them.

• Students will then read the article Electricity's spark of life.
  

• They will write any keywords and scientific vocabulary which is related to electricity.
• Finally, they will rule a 10cm by 10cm frame and draw a picture, icon, or meme that represents the concept/theme of electricity.

1. Using wire strippers or sandpaper, strip 1/2 in (1.3 cm) of insulation from the ends of each piece of wire to ensure a good connection.
2. Tape one end of a short piece of wire to the positive terminal of a D-cell battery using masking tape. Connect the other end of the short wire to one terminal of the light bulb holder. To make a good connection, wrap the wire around the screw on the bulb holder terminal in a U-shape. Connect a long piece of wire to the negative terminal of the D-cell battery using masking tape. Connect a second piece of long piece of wire to the open terminal of the bulb holder.
3. Test your circuit by touching the free ends of wire together. What happens? (Answer: The circuit is complete and the bulb lights.) If the bulb does not light, check all connections and try again. Now, leave the circuit open. We will use this circuit as a conductivity tester.
4. Use the circuit as a conductivity tester for solid objects. Get materials from your teacher to test. Predict whether each item will conduct electricity. Then, touch the two wire ends to a test object to see if the circuit is completed. How will you know if an item is a conductor or an insulator? (Answer: If an object is a conductor, the bulb will light. If an object is an insulator, the bulb will not light.)

5. Predict which objects you think will conduct electricity.
6. Use the circuit tester to determine whether each object is a conductor or an insulator. Record your test results on the worksheet.
7. Make a conductivity tester for liquids: Modify the conductivity tester by adding one or two more batteries in series (see Figure 3). Use short pieces of wire to connect the batteries in series.
8. Carefully wrap aluminium foil around the end of the two open-ended wires to make an electrode. (Note: No foil shown in Figure 3 setup.) Make each electrode 1 in (2.5 cm) long by ¼ in (6 mm) wide.
9. Test your circuit. Touch the pieces of a foil together to close the circuit. What happens? (Answer: When you touch the foil electrodes together the bulb lights because the circuit is complete.)
10. Predict which liquids will conduct electricity, recording your predictions on the worksheet. How will you know whether a liquid conducts electricity? (Answer: If a liquid conducts electricity, the bulb will light.)
11. Use the circuit as a conductivity tester for liquids. Test each liquid by submerging the electrodes in the solution and holding the electrodes close without touching each other. Be careful to only hold the wire where it is insulated. Put on new aluminium foil electrode strips for each test.