What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This science fair project idea researches the effects of acid rain on plant growth.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This science fair project idea observes products available in the school cafeteria and waste produced by these products.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.