Materials
- Toothpicks
- Glass or plastic cup or saucer
- Water
- Sweet Potato or Carrot
- Knife
- Scissors
- Pebbles or pea gravel
- Select a fresh carrot that still has the leaves on the top.
- Cut the carrot so that about two inches remain below the top.
- Trim the leafy greens from the top of the carrot.
- Fill a container with about one inch of pebbles or pea gravel.
- Place the carrot tops, cut side down, in the gravel. If necessary, add more gravel to hold the carrot tops in place.
- Add water to the container.
- Place the container in a sunny location.
- Ask students to predict what will happen.
- Will a new carrot form?
- Will it grow?
- If so, how big will it get?
- Observe the changes in your carrot.
- Add water as necessary.
- Although the carrot will not form a new root, after a few days leafy greens will start to appear.
- Place four toothpicks around the middle of a potato.
- Fill a cup with water.
- Taking the potato with the toothpicks, rest the toothpicks on the edge of the cup. The bottom of the potato should be sitting in the water.
- Place the cup in a sunny location.
- Ask students to predict what will happen.
- Will a new potato form?
- Will it grow?
- If so, how big will it get?
- Observe the changes in the potato.
- Add water as necessary so that the bottom of the potato is in the water.
- After a couple of days, roots will start to form in the water and stems and leaves will start to form.
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