8. Seed germinationPut the sponge on a small saucer, water it to make it moist, then sprinkle seeds on it and put it in a sunny place. The seeds will soon germi...
8. Seed germinationPut the sponge on a small saucer, water it to make it moist, then sprinkle seeds on it and put it in a sunny place. The seeds will soon germi...