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This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

The objective of this science fair project idea is to determine whether frozen vegetables have more nutrients than canned vegetables.

This science fair project idea measures physical dexterity as a function of temperature.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

This science fair project idea investigates food preference of birds.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.