Support the beet with some more pebbles. In about 5 days you should have some growth. You can also try this with carrots and radishes. Garlic Plant one clove of garlic in a fairly deep container of soil. Don't overwater as the clove will rot.
Peas Follow the same procedure as for beans.
If you use fresh peas, they do not need to be soaked. Potato Pick a small potato with eyes starting to sprout. Plant in a deep container of soil. Keep the plant in bright sun. With luck, you may get a tiny harvest to eat.