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WALT: I can observe and compare the brightness of the bulbs in different set-ups.

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WALT: I can observe and compare the brightness of the bulbs in different set-ups.

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WALT: I can set up circuits with different numbers of batteries in series.

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WALT: I can set up circuits with different numbers of batteries in series.

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I wonder: Does the brightness of the bulb change when I add the batteries in PARALLEL?

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I wonder: Does the brightness of the bulb change when I add the batteries in PARALLEL?

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Let's predict first. (Remember, predictions can be wrong. It doesn't matter!)

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What did you observe? Did the brightness of the bulb change when you added one BATTERY?

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1. Set up a circuit with ONE battery and one bulb.

2. Take a photo and upload it here.

3. Add a battery to the set up.

4. The circuit should now have TWO batteries and one bulb.

5. Take a photo and upload it here.

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How would you set up the experiment for it to be a fair test?

What do you need to keep the same?

What do you need to change?

Take a picture of your result(s) and upload it here!

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Do a flashcard: What happens when I add batteries to a circuit?

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WALT: I know how the brightness of the bulb will change when I add BULBS in SERIES.

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WALT: I know how the brightness of the bulb will change when I add BULBS in SERIES.

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You want to find out how the brightness of the bulb will change when you add BULBS in SERIES.

We need to do an experiment to find out!

1. Upload the experiment you designed (include information such as materials needed, steps to follow)

2. Predict what you will observe. Give a reason for your prediction.

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When there there is one battery with one light bulb then the light get brighter, if there are two light bulbs with one battery then then the light get dimmer.

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Meterials needed

three light bulbs

two battery

five wire

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If we have a battery and a bulb the bulb will be bright

But if we have a battery and 2 bulbs it will light up little bit

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The bulb in the first set up glows more then the second set up,why is that?It’s because 3 light bulbs need more energy,therefore,set up one glows more!

MATERIALS

5 bulbs 2 batteries 4 wires

HOW TO MAKE SET UP

Connect the light bulbs to the wire and battery.

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Darwish

Different amount of batteries

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What I will observe:

The second set up is brighter than the first set up as the second set up has enough batteries to brighten the two bulbs but the first set up doesn’t have enough batteries to brighten the two bulbs.

Materials:

2 batteries, 2 battery holders, 2 bulbs, 2 bulb holders and 4 wires.

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Items neeeded:wire,light bulb💡,battery🔋,switch🎚️

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Darwish

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Darwish

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Darwish

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Before

2 light bulb

1 batterie

2 wire

The I

After

2 light bulbs

2 batteries

2 wires