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Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

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

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

How well can people recall what they have observed. Test your knowledge in this fun experiment.