Build-Your-Own Center Pivot Irrigator

Materials

• 1 bendy straw

• 2 coffee stirrer straws

• modeling clay

• 4 buttons

• 1 thumb tack

• 2 small rubber bands

• 6-8" of plastic tubing

• 1 oral syringe

Virginia Science Standards of Learning - 4th Grade

4.1 The student will demonstrate an understanding of scientific reasoning, logic, and the nature of science by planning and conducting investigations

4.5 The student will investigate and understand how plants and animals, including humans, in an ecosystem interact with one another and with the nonliving components in the ecosystem

4.9 The student will investigate and understand important Virginia natural resources