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By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

The objective of this science project is to determine whether a sweet tooth is most likely an inherited trait or a learned behavior.

This experiment researches if you gave different amounts of food to mosquito larvae would they grow faster or slower

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

Learn the chemistry and physics of the brain, how our nervous system work. Demonstrate that the brain is an electrical and chemical machine.

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

Demonstrate that insects observe colors and choose favorites. Place colored pieces of construction paper on a flat, glassy surface, observe bug preference.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

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

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

Explore the effect of wind speed on the burning rate of a candle.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

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

Science fair project that uses iodine solution to demonstrate how starch is turned into sugar when it is chewed in the mouth.

How powerful is the reaction between baking soda and vinegar? Find out here!

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

In this science fair project, students create their own miniature salt flats at home.

In this science fair project, students investigate how different colors influence appetite.

In this science fair experiment, middle school students evaluate whether tone of voice can influence our ability to remember a list of everyday objects.

This experiment will evaluate if the environments that people work in affect their speed and accuracy in performing mental tasks.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

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

Show your middle schooler how a quick whirl of spinach in the blender will reveal the cobwebby "stuff"--or DNA--of life!

This project examines who can jump higher, boys or girls, younger people or older, and how these two factors, gender and age, interact with one another.

This experiment explores how listening in to a one-sided conversation affects concentration.