Product code: PJ87 Volcanic Shell (Injection Molding)
Product Name: Volcanic Shell (Plastic Version)
Size: 146*120*80mm
Material: Plastic
Color: Brown
Battery: No
Packing: 400pcs
Box Specification: 600*400*500mm

Lu Zuo Deng Zi - 2022 - F - 00759845

Direct factory supply prices have an advantage, and the ownership of intellectual property rights allows for reassuring sales.

Large quantities can be customized according to requirements in color.

Experimental Objectives

1. Able to intuitively understand and observe volcanic eruptions.
2. Understanding the basic principles of volcanic eruptions
3. The experience of success in the experiment
4. Exercise hands-on ability

Experimental understanding and summary

Volcanic eruptions are a peculiar geological phenomenon, a manifestation of crustal movements, and the most intense display of Earth's internal energy at the surface. They are the release of magma and other ejecta from the volcano to the surface within a short period of time. Due to the presence of large amounts of volatile components in magma, coupled with the confining pressure of overlying rock layers, these volatile components are dissolved in the magma and cannot overflow. When the magma rises close to the surface, the pressure decreases, and the volatile components are rapidly released, leading to volcanic eruptions.

Volcanic eruptions need attention

In the gestation stage of volcanic eruptions, due to gas dissolution and the occurrence of seismic swarms, the degree of fracture of the overlying rocks increases, pressure decreases, and the amount of gas dissolution in the magma body continues to increase. The volume of magma gradually expands, the density decreases, and the internal pressure increases. When the internal pressure greatly exceeds the external pressure, a violent explosion of gases occurs in the fracture density zone of the overlying rocks, causing the rocks to break and opening the channel for volcanic eruptions. First, the fragments are ejected, followed by the eruption of magma.

Small Knowledge Point (The Hazards of Volcanic Eruptions)

Impact on global climate: Volcanic eruptions emit large amounts of volcanic ash and volcanic gases, which have a significant impact on climate. In such cases, dim daylight and violent storms, even mud rains, can trouble local residents for months. Volcanic ash and gases are sprayed into the upper atmosphere, and they are dispersed by the wind to distant places. These volcanic materials can block sunlight, leading to a drop in temperature.
Environmental destruction: Volcanic eruptions can combine with heavy rains to form mudslides, which can destroy roads, bridges, and flood nearby villages and cities, leaving countless people homeless. The mud and rock debris can flood an entire city like a flood.

Safety Warning:

All the accessories in this product are specially designed for student experiments. Please use them under the supervision of teachers and parents to ensure safety! Do not consume any of the products! They are not suitable for children under three years of age. Do not approach fire sources. Before assembling any batteries, please check if the circuit is clear, all parts of the circuit are complete, and all contacts are good. The + on the battery is the positive pole, and - is the negative pole. Be careful during the assembly process, and if glue is used, do not get it in your eyes or on your skin.