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In this science fair experiment about recycling, demonstrate how the wax from a candle can be reused to make another candle.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

The objective of this science project is to determine the length of time for different seeds to germinate.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

A math project teaches students to use a clinometer to gauge the height of very tall objects like trees & to think of better ways to measure how high they are.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

This project will explore whether music influences physical endurance.

Create a double-slit interference out of cardboard. Produce an interference pattern that demonstrates the wave and particle characteristics of light.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

This research project teaches students about synesthesia, a neurological condition that causes sensory overlap.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

This simple project makes young children aware of their sense of smell and its capacity for providing them with information about their world.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.

This science fair project studies which color(s) of flowers butterflies & bees are attracted to and if color plays a role in flower selection for pollination.

This middle school project examines the strength of horizontal versus vertical pointing eggshells.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Research history of programming language. Design a new or improved programming language. Create a display that illustrates the features and improvements.

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

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

This project uses toy cars to determine how friction and gravity affect cars and braking.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Research fruits and their ripening stages, follow and document the different stages. Analyze what causes fruit to continue ripening after being picked.