I'm a Seed Extension Activity
Here's how to make sponge gardens.
- Grades: PreK–K, 1–2
To make a sponge garden, gather different kinds of small seeds. (Grass seed works well.) Give each child a small piece of sponge, a paper cup, and some seeds. Tell them what kind of seeds they have. Have children soak the sponge thoroughly, place it in the cup, and add more water. Tell children that there should always be water in the cup so that the sponge does not dry out. Then have children sprinkle their seeds on top of the sponge. Have them label their sponge plants. When leaves appear, add liquid plant food to the water to supply nutrients. Line up the sponge plants along a windowsill.