Which Drink Stains Teeth? Egg Experiment

An adult reads the setup page before class, boils the eggs, brews the tea and sets up on day 1. Students rank the drinks, then lift each egg out with a spoon each day to draw it and write one word about the stain. Check for egg allergies first; no one eats or tastes the eggs or drinks, and everything is thrown away after day 3.

Four pages after the cover: an adult setup page with supplies, steps, safety notes and why eggshell is a stand-in for enamel, a prediction page, a 3-day observation table with a drawing space for each egg, and a results page. The last page ends with a test that brushes half of the most stained egg with toothpaste for 2 minutes.

Yes. We made it for 3rd Grade to 5th Grade holiday activities, and it works the same at home or at school. Families print it for one child and keep it where they will use it every day. Teachers print a copy per student or one for the whole room, whichever the day needs.

4 printable resources, all free to preview. There are 37 Children's Dental Health Month resources in all, from Preschool to 5th Grade, gathered on our Children's Dental Health Month activities page. Downloads are included with a ClassWeekly free trial, and every page prints on standard 8.5 x 11 paper.

These are written for 3rd Grade to 5th Grade students, roughly ages 8-11. Many teachers also use them a grade up for review or a grade down as an extension, so use the preview to judge the fit for a particular child.

Yes. Nothing here assumes a classroom of 25, so they work the same one-to-one at the kitchen table as they do in a 3rd Grade to 5th Grade classroom, a learning center, or a tutoring session.