Observing Convection 1 & 2

Follow the steps in each stage to complete the practical experiment

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Observing Convection 1

We are learning about convection currents in the earth's upper mantle.
These experiments will give you a greater understanding of convetion currents

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1. Set up the Bunsen burner, tripod and gauze mat

2. Half to two-thirds fill the beaker with tap water

3. Place one-two teaspoons of dried tea leaves into the beaker

4. Light the Bunsen burner and observe

Method

• Bunsen burner

• Heat mat

• Tripod

• Gauze mat

• Matches

• 250 mL beaker

• Tea leaves

Materials

Observing Convection 1

Labelling

Label the diagram of the set up of your experiment

Drag labels to their correct position on the image

water

gauze mat

beaker

bunsen burner

heat proof mat

tripod

Open Ended

Hypothesis: after reading the method predict what you think will happen during the experiment.

You must show this to me before collecting your materials.

Draw

Draw and label the path of the tea leaves

Open Ended

Define convection and explain how this is an example of convection

Follow the steps in each stage to complete the practical experiment

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Observing Convection 2

1. Use scissors to cut off the top of the tea bag.

2. Empty the contents of the tea bag into a beaker

3. Unfold and straighten the empty bag. Open it so that it looks like a cylinder.

4. Light the top rim of the bag on fire all the way around the edge.

Method

• Tea Bag

• Matches

Materials

Observing Convection 2

Open Ended

Hypothesis: after reading the method predict what you think will happen during the experiment.

You must show this to me before collecting your materials.

Draw

Draw a picture of the path of the tea bag

Open Ended

Explain how this is an example of convection