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Students identify variables that affect the duration of high school romances and analyze data to predict the success or failure of ongoing relationships.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.

Science fair project that identifies the nature of ionic and covalent bonds and determines how ionic and covalent compounds differ.

Discover which method for odor removal words the best for stifling refrigerator odors.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Compare the ignition rates of various types of flame-retardant materials.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

This science fair project idea investigates how the shape of an object affects drag.

Determine the growth rates of different types of human hair. Ask volunteers to not cut their hair until the end of experiment. Measure hair length.

Which bread molds fastest? Explore the different kinds of breads and how quickly they mold, along with the role of preservatives.

This experiment will explore whether fractals really repeat themselves infinitely.

Design and build a balloon rocket from an existing design. Think of the ways in which existing designs can be improved, new practical applications

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

Discover which battery composition (type) lasts the longest.

Examine the effect of pressure on carbonation in soda.

This classic children's game demonstrates how sound travels through air vs. through a solid.

In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

This project investigates whether chewing gum can help a majority of people with focus and concentration.

This project determines what category of person is most likely to be ticklish.

Is exercise a cellular activity? Check out this fun science fair project idea to compare the carbon dioxide production before and after exercise.