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Volcano Simulation Experiments

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Volcano Simulation Experiments

A science team is using a safe tabletop model to explore how changing the size of a vent affects an eruption. Read the model description and results, then answer each question. In a volcano, the magma chamber stores magma below the surface, and the conduit carries magma from the chamber towards the crater. The model uses bicarbonate of soda and vinegar; it is not a real volcano.

Read the model results

The team made three trials for each vent size. Each trial used the same amount of bicarbonate of soda and vinegar. They measured the height of the foam in centimetres.

Vent opening

Trial 1 (cm)

Trial 2 (cm)

Trial 3 (cm)

Narrow

Wide

1.According to the model description, which part carries magma from the magma chamber towards the crater?

2.What is the difference between magma and lava?

3.Which description best fits the investigation?

The team changed the vent opening and measured foam height.
The team changed the vinegar amount and measured the vent opening.
The team changed the foam height and measured the bicarbonate amount.
The team changed the number of trials and measured the crater.

4.Name one factor the team should keep the same in every trial to make this a fair test.

5.Calculate the mean foam height for the narrow vent. Show or explain your calculation.

6.Calculate the mean foam height for the wide vent. Which vent size had the higher mean?

7.Complete the conclusion: In this model, the narrower vent produced foam than the wider vent.

8.The three results for each vent are similar but not identical. Give one reason repeated trials are useful.

9.The model uses foam to represent an eruption. Give one limitation of using this tabletop model to explain a real volcano.

10.A team wants to investigate whether changing the amount of vinegar affects foam height. State a prediction and name one thing they should keep the same.

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Year 4

Volcano Simulation Experiments

Volcano Simulation Experiments

Read the model results

2 printable pages

About This Worksheet

Free in Kuraplan

Print-Ready

AI-Generated

For Teachers & Parents

Need a custom version of this worksheet?

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