catalyst
Pronunciation: [ˈkætəlɪst]
Word
Context: "science"
(noun) a substance that helps a chemical reaction happen faster without being used up. It’s like when you add something to a recipe to make it cook better, but it doesn’t change itself.
Example
The enzyme acted as a catalyst, speeding up the reaction in the lab.
Example
Without the catalyst, the reaction took much longer and wasn’t as effective.
Example
What catalyst did you use to make the reaction go faster?
Context: "change"
(noun) something that causes change or helps something important happen. It’s like a friend encouraging you to try something new or exciting.
Example
The community event was a catalyst for many positive changes in the neighborhood.
Example
Without a catalyst, the project failed to inspire any improvements.
Example
What events can be a catalyst for change in your life?
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