On Wednesday we moved on to the second part of the parable....yeast.
Jesus said that a tiny bit of yeast can change a big lump of dough. We saw part of that process over the next two days.
Science Activity: Yeast makes carbon dioxide gas. When yeast is mixed into dough, the gas bubbles get trapped in the sticky dough. That's what makes bread fluffy. In our experiment we discovered just how much carbon dioxide yeast makes!
Abishai gently shaking the yeast and water to wake the yeast from it's dormant "sleepy" state.
Yeast needs something to eat in order to reproduce. After adding some sugar we placed a balloon over the bottle, secured it with a rubber band and then waited for the yeast to make gas and fill the balloon.
We came back every 10 minutes for 40 minutes to see if our balloon had grown bigger.
20 minutes: Starting to fill!
After 40 minutes of observations, I moved it to the counter to see if it would continue to expand over the course of the day. This is what the balloon looked like mid afternoon.
All of our supplies gathered together.
We ground up some fresh spelt flour!
Micaiah taking a turn. He wasn't impressed with his hands being sticky.
Letting it rise under a damp cloth.
The risen dough after a 30 minute wait.
Punching it down. We might have punched it down too much.
Waiting for it to rise again.