We are continuing with our natural hazards theme with 'Bubble-mania; the bubbling clues to magma viscosity and eruptions'. This ELI is a simple test of the viscosity of two similar-looking liquids, linked to volcanic eruption style. Many more 'volcanic' ...
There is also a teaching video demonstrating this activity. You might enjoy watching another video too!
This activity demonstrates how a simple ‘tiltmeter’ can show the bulging of a volcano before eruption – using trays of water to highlight ‘bulging’ as a bag or balloon is inflated.
Related activities can be found in our Natural Hazards category - Volcanoes.
This activity involves an investigation into some of the factors which can affect the viscosity of lavas. The two activities included involve varying the temperature and composition of the 'lava' using treacle and honey.
Other related activities can be found in our Natural Hazards category - Volcanoes.
This ELI investigates the effect of vegetation cover in protecting soil from erosion in heavy rainfall. It provides the opportunity to explore some of the factors involved in limiting soil erosion. A teaching video accompanies this activity.
The extension to the activity also gives some good ideas, including painting with different soil types.
Related activities can be found in our Earth Materials category - Soils and in Earth processes - Sedimentary processes.
Several photographs are used to stimulate discussion about possible rapid geological processes in the past which might have had “catastrophic” outcomes if there had been humans on the Earth at those times.
Many related activities can be found in our Natural Hazards category.
