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bomb A bomb is a metal container with something inside it that can explode. When a bomb explodes, it can cause terrible damage and harm to things and people. Bombs are used as weapons.
burst to break, open up, or explode suddenly. [2/7 definitions]
compound1 In chemistry, a compound is a substance formed by combining two or more chemical elements in certain amounts. When the elements are combined, they make a new thing that is different from the parts that make it up. For example, some elements that are completely safe when they are separate could make up a compound that can explode. Or, two elements that are dangerous by themselves could become very safe in a compound. [1/5 definitions]
detonate to explode or cause to explode.
dynamite Dynamite is a material that can explode with a lot of power. Dynamite has many uses, including blasting through rock to make roads, tunnels, and mines. [2 definitions]
extinct When a volcano is extinct, it is not active anymore. It will not explode again. When a fire is extinct, it is no longer burning. [1/2 definitions]
fireworks devices that burn or explode to make noise, bright lights, or brilliant colors. [1/2 definitions]
go off When fireworks go off, they explode. [1/2 definitions]
mine2 A mine is a kind of bomb hidden in the ground or in water. A mine can explode if there is some amount of pressure put on it. [1/5 definitions]
pop1 to burst open or explode with such a sound. [1/9 definitions]
volcano A volcano is a mountain made from hot, melted rock that has come up from deep inside the earth. A volcano begins with an opening in the earth's crust made by force from underground. Then, with an explosion, hot melted rock is thrown into the air through this opening, along with lots of smoke, ash, small rocks, and gases. Volcanoes build up over thousands of years with repeated explosions. Most of the time, nothing is happening inside a volcano. The mountain may have trees and plants growing all over it. It is like it is sleeping--maybe for thousands of years-- but sometimes a volcano becomes active. When a volcano becomes very active, it can explode and pour out the hot, liquid rock that eventually cools and adds to the size of the volcano.