Water is the most abundant fluid on the Earth's surface and it flow easily even on relatively low slopes.

Olive oil is a common fluid used in cooking and is a healthy alternative to oils high in saturated fats. It pours easily from a bottle and becomes more fluid as it gets hotter.

Ketchup is a rather viscous condiment that is sometimes difficult to get out of a bottle without a little coaxing. The lowest viscosity magmas behave like ketchup.

Magmas consist of silicon (Si) and oxygen (O) atoms arranged as tetrahedron that are linked together by either strong O-O bonds or weaker O- (Ca, Mg, Fe) bounds. As the number of O-O bonds increases so does the viscosity because the bonds need to be broken in order for the magma to flow.

Basalt magmas have relatively high contents of Ca, Mg, and Fe, and lower contents of Si and O. This results in overall weaker chemical bonds and thus some of the lowest magma viscosities.

Magmas consist of silicon (Si) and oxygen (O) atoms arranged as tetrahedron that are linked together by either strong O-O bonds or weaker O- (Ca, Mg, Fe) bounds. As the number of O-O bonds increases so does the viscosity because the bonds need to be broken in order for the magma to flow.

Andesite magmas moderate contents of Ca, Mg, and Fe and higher contents of Si and O. This results n stronger chemical bonds and higher viscosities compared with basalt magmas.

Magmas consist of silicon (Si) and oxygen (O) atoms arranged as tetrahedron that are linked together by either strong O-O bonds or weaker O- (Ca, Mg, Fe) bounds. As the number of O-O bonds increases so does the viscosity because the bonds need to be broken in order for the magma to flow.

Rhyolite magmas have low contents of Ca, Mg, and Fe, and high contents of Si and O. This results in overall strong chemical bonds and some of the higest viscosities of any magma type.