This seismograph model creates a visual representation of the shock waves generated by an earthquake. It can be used to teach both mathematical and geological concepts. A seismograph is a model that displays motion of the ground, including those of seismic waves generated by earthquakes, volcanic eruptions, and other seismic sources. This model is perfect to measure real earthquakes or – in the more likely event in a classroom setting – a simulated classroom earthquake. The seismograph will record the smallest disturbance in the form of waves. Not only will students learn how a seismograph works, they will learn to analyse the results. Earthquakes are a fascinating, powerful, and uncontrollable force that capture the attention of students. You will find that students find it fascinating to now be able to understand the magnitude of an earthquake by performing mathematical equations. The base of the model measures 15 x 30cm. The illustrated pencil is not included, any pencil of similar size can be used.