Growing grass is a fun science activity for preschoolers that incorporates the color green.
Materials: grass seeds, potting soil Styrofoam cups, coffee filters, aluminum pie pans, water, black marker
Preparation: Punch some small holes in the bottom of the Styrofoam cups to allow for drainage. Place a coffee filter in the bottom of each cup. Fill each cup up with potting soil. Write the names of the students on the cups.
Instructions: Provide each preschooler with a labeled cup of dirt. Help the preschoolers plant a handful of grass seeds in their cups. Have the children place their cups in the pie pans, and place the pie pans in direct sunlight. Let the students take turns watering the seeds until the grass grows. Talk about how grass needs dirt, sunlight, and water to grow big and green.