Imagine you have a volcano in your backyard. This volcano is like a big mountain that spits out hot molten lava, ash and gases from inside the earth.
Scientists study volcanoes to understand when they might erupt. They look at many things to see if a volcano might erupt soon. They may look at the size and shape of the volcano, the gas and rock that comes out, and the ground around the volcano.
Once scientists see signs that a volcano might erupt soon, they start predicting when it will happen. Predicting means using clues and past events to guess what might happen in the future.
To predict when a volcano will erupt, scientists use tools like seismometers, which are like special microphones that listen for moving rocks under the ground. They also use gases that come out of the volcano, as these gases might change before an eruption.
Scientists also take samples of rocks and ash that have come out of the volcano before. They can look at these samples under a microscope to see if there are any signs that the volcano is becoming more active.
All of this information is put together to make a guess about when the volcano might erupt. The scientists will then tell people who live nearby what they think is going to happen so that they can stay safe.
It's important to remember that volcanoes can be unpredictable, and scientists can’t tell exactly when a volcano will erupt. But by studying them, they can help reduce the risk of people getting hurt or homes being destroyed.