*Written by Jennifer Wiatrowski, Pasco-Hernando Community College*

**Learning Outcomes:**

– To help students visualize the relationship that exists between atoms in a **polar covalent bond**

**Activity Description:** Three students use paper to demonstrate how electrons are equally shared in non-polar covalent bonds and unevenly shared in polar covalent bonds. This works well in a class of any size.

**Time Needed:** A few minutes

**Materials Needed:** Five pieces of paper and 3 students

**Activity Instructions:** I usually look for a large male student to be “oxygen” and then two smaller students to be “hydrogen.” I have the students stand in a row with oxygen in the center. Between each hydrogen and the oxygen, I have them hold a piece of paper with two large dots on it. These represent the shared pairs of electrons. I have them start out holding the electron pairs at equal distance from one another (like in a **non-polar** relationship). But, then I tell oxygen to be the “bully” and pull those electrons closer to his body. I then hold signs over their heads indicating **partial positive and partial negative charges. **(*A more creative person could probably come up with some funny hats representing the charges for the students to wear.*)