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7th grade science project idea

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White Trays vs. Whitestrips: Which Whitens Teeth Better?

Explore which teeth-whitening products work best - Whitestrips or Whitetrays.

The Relationship Between Toilet Paper Ply and Strength

This project compares the strength of one, two, and three-ply toilet paper.

Does Tea Stain your Teeth?

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

Do All Liquids Evaporate At The Same Rate?

see whether all liquids evaporate at the same rate. In other words, does water evaporate at the same rate as juice?

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