Volcanoes

 We were learning about volcanoes and we had a small scale volcano for doing test on how they erupt. we put vinegar, baking powder and food coloring in the volcano and it started to flow over the top like lava. We learned that before lava is above the ground it is called magma . Volcanoes are formed by the plates under the earth putting pressure one each other until the ground moves up into a mountain or a volcano. There are more than 1500 active volcanoes in the world and 80 of them are under water. Hawaii was formed by 5 volcanoes but two of them are active. Lava can range form 1300 to 2200 degrees.