Why do volcano's have red and orange lava?

Answer 1

Different colors of lava depends on its temperature, it starts out bright orange (1000-1150 C) then it cools the color changes to bright red (800-1000 C), then do dark red (650-800 C) and then the color is brownish red (500-650 C). The solid colored lava is black (but can still be very hot).

Answer 2

Volcanoes produce red and orange lava due to the high temperatures at which the molten rock is ejected, typically above 1,800°F. The bright colors are caused by the emission of light from hot, incandescent gases that are released during the eruption. Chemical composition, temperature, and oxidation states of the erupting materials also play a role in determining the color of the lava.

Answer 3

lava might change color due to the temperature of it, cooler lava tends to be darker than hotter lava. also, some lava have rocks that have not melted in them, so the rocks might also be reason to the variation of colors.

Answer 4

They often are not. The most common color for lava rocks is actually black, though red is not an uncommon color.

The lava that people are generally familiar with is basaltic lava, which has a relatively high iron content. Sometimes the iron oxidizes over time, essentially forming rust, whic gives the rock a red coloration.

Answer 5

All matter radiates energy on the electromagnetic spectrum. The hotter the object, the shorter the wavelength. At room temperature and some significantly higher temperatures, matter radiates primarily infrared light, which is invisible to us. Red light has a shorter wavelength than infrared, and yellow light has a shorter wavelength than red light.

Answer 6

It doesn't have to be. The classic view of lava is of basaltic lava, which is so hot that it glows red or sometimes yellow. The outside may cool and form a black crust of basalt. Other lavas which are somewhat cooler (though still very hot) may have a gray crust. The coolest lava, rare carbonatite lava, is black but can be seen to have a dim red glow at night.

Answer 7

Lava is orange due to the extreme temperatures of the molten rock

Answer 8

Lava appear to be yellow, orange, and red because of the very high temperatures of molten lava. It is so hot, it is glowing.

Answer 9

Lava glows red because it is very hot.

Answer 10

food coloring