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The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Science fair project that uses distillation to convert salt water into fresh water.

This science fair project idea examines various dead zones and investigates the cause and how it can be fixed.

This flexible activity for preschoolers features jellybeans, counting, coloring, and the five senses.

Examine how a battery can be made from everyday materials.

Check out this fun high school science fair project idea to identify features of a mushroom and learn how do humans use fungi to their benefit?

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

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

The goal of this science fair project is to investigate the effect of irradiation on the germination and growth of vegetables, such as the tomato plant.

This science fair project researches the most effective method to cut an onion and stay tear-free.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

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

This fun middle school science fair project idea helps student discover the concepts behind deep sea diving and how Cartesian divers work.

Science fair project idea that measures fuel efficiency in cars. Calculate cost per mile by comparing fuel cost and consumption data.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

The aim of this science fair project is to examine the differences between brands of bottled water and analyze consumer preferences through a taste test.

Investigate which substances are most effective at removing salt from water.

Use pepper and soap to discover some fun facts about the properties of water.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

Check out this fun science project idea to measure the amount of vitamin C in ripe, half-ripe, unripe and stored oranges.