Explosivo

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/explosivo

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the thermodynamic principle?Rapid conversion of chemical potential energy to kinetic and thermal energy
2. What is the key historical development?Alfred Nobel's invention of dynamite in the 19th century
3. What is an explosive?Explosives are materials that can suddenly release a lot of energy, usually through a chemical reaction or a phase change, causing a rapid expansion of gas and a high-pressure wave.
4. How do explosives create a big bang?When an explosive starts, its solid or liquid parts break apart quickly, turning into many hot gases. The sudden rise in temperature and gas amount makes pressure grow fast, pushing the gas outward in a wave that can be supersonic or subsonic.

Metastable Substance: A substance that is relatively stable but can release significant energy when disturbed.
Activation Energy: The minimum energy required to start a chemical reaction.
Brisance: The shattering effect of a high explosive, indicating its power.