Harder - Volcanoes occur along the earth's tectonic plates where molten rock is forced upward from magma reservoirs deep in the earth. The magma may be fifty to one hundred miles below the ground. As the magma rises, it gives off gases that cause an explosion in the vents of the volcano. Lava can reach temperatures of over 2000 degrees F. Molten rock, dust, and gases push through the opening in the earth's crust and form a mountain. A violent explosion can cause the top of the volcano to blow off leaving a deep crater.
Volcanoes can occur on land or in the water.
Choose a project and use the links below to solve the problem or create a project. My Favorite Volcano . Pick a volcano to explore. Visit sites like VolcanoWorld and Earth's Active Volcanoes to learn as much as you can about your volcano. Mark the location of the volcano on the map and attach a picture from the Internet.