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 # Yeast (Leaven)
 
-"Leaven" is anything that causes bread dough to expand and rise. "Yeast" is a specific kind of leaven. In Old Testament times, people made leaven by saving a small amount of old bread dough. They placed it in a container and waited for it to rise. This became the leaven they mixed with flour to make new bread dough.. 
+"Leaven" is anything that causes bread dough to expand and rise. "Yeast" is a specific kind of leaven. In Old Testament times, people made leaven by saving a small amount of old bread dough. They placed it in a container and waited for it to rise. This became the leaven they mixed with flour to make new bread dough. 
 
 The Israelites did not have enough time to wait for their bread dough to rise when God freed them from slavery in Egypt. So they quickly made bread without leaven to take with them when they left Egypt. Every year the Jewish people celebrate Passover by eating bread without leaven to remind them of their escape from Egypt (see: Exodus 12:14-20).