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WORD OF THE DAY

Word: Obsidian (noun)

Pronunciation: ob-SID-ee-uhn /əbˈsɪdiən/

Meaning:
Obsidian is a naturally occurring volcanic glass formed when molten lava cools very quickly. It is usually black, smooth, and shiny, and has been used for making tools, ornaments, and jewelry for thousands of years.

Example Sentence:
The science teacher showed the class a piece of obsidian and explained how it forms during volcanic eruptions.

Fun Fact:
Because obsidian has extremely sharp edges when broken, ancient civilizations used it to make knives, arrowheads, and other cutting tools. Even today, some surgeons use obsidian blades for very delicate procedures.

Did You Know?
The word obsidian comes from the Latin word obsidianus, named after an ancient Roman explorer called Obsius, who was said to have discovered the stone in Ethiopia.

Challenge Question:
Can you name another rock or mineral that forms naturally on Earth? Research how it is formed and share your findings with your classmates!

Quote of the Day:
"Learning is like discovering hidden treasures beneath the surface—every new word uncovers a world of knowledge."

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