This week's science experiment is really a report on several weeks of observations of plant growth. About a month ago I discovered that some of the garlic cloves I had for cooking were sprouting. I thought, "wouldn't it be fun for the kids to plant these and see what happens?" So after our regular weekly science experiment (#5) we did just that. Some of the cloves we planted in a glass cup with a wadded up paper towel to keep them in place and enough water to cover them.
The other three cloves got planted in a clear glass vase with good old potting soil.
Then we set them in a sunny spot and waited to see what would happen.
A week later we made official observations. The kids were quite interested in how the roots were growing through the dirt as well as around each other in the water glass.
The following week we observed again, but the excitement wasn't the same because although the stems and roots had increased in length, they didn't look a great deal different from the previous week.
Today we observed again. Our first observation was that the garlic in the glass was beginning to smell - and not a pleasant garlicky smell, but a starting to get moldy smell.
So we pulled them out of their home, talked a bit about roots and stems and leaves, what plants eat, and why they need dirt to grow, and then we threw them away.
The cloves that we planted in dirt did not smell, so we are going to leave them in their sunny spot and continue to observe them grow. Maybe we'll even get a bulb of garlic to eat when the experiment is finished.
Happy edible science, everyone!