Each student needs:

• a Grass Head Worksheet
• a piece of nylon stocking about 9 inches long. Ask each student to bring one from home or buy a 10-packs for 20 students.)
• a bowl. A disposable party bowl such as this.
• a cup
• pieces of felt. Any shape is fine. Enough to cut two small eyes and a mouth shape.
• scissors
• a small rubber band
• a pencil
• a spoon 
• grass seeds. Each student will need one big spoonful of grass seeds. You can set up a bowl of grass seeds for each group of students.
• a handful of cotton balls (about 20 per student)
• access to water. Each student will need to dip their cotton balls into water. You can set up a bowl of water for each group of students.

For the next week, we recommend that you check your grass heads every day and use a spray bottle to mist them, if they are drying out.

One other tip: If you want the grass to grow quickly, keep the grass heads in a warm place. The Mystery Science office is warm, and our grass grew in a week or two. In a classroom that's cold, your grass will grow more slowly. If you like, your class can experiment by putting one grass head in a warm spot and another in a cold spot and observe what happens.

If you want to give students a chance to have fun with their grass heads' expressions, consider getting some peel-and-stick googly eyes. In the next lesson, you'll also have the option of having students personalize their grass head creations.