Worksheet

What Is Yeast, and How Does It Work?

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About:

This printable science worksheet for 2nd graders introduces yeast and fermentation through seven fill-in-the-blank sentences with a word bank of six terms. Students learn that yeast is a microorganism in the fungi family, how fermentation makes dough rise, and what happens when bread is baked. Great for early-elementary science lessons on living things and bread-making.

Subject:: Science
Topic:: Biology
Grade Level:: 2nd Grade
Updated May 2026

Word Bank

heat
fungi
sugar
expand
Kneading
microorganism

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