In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Find out whether matte or shiny nail polish lasts longer.

This science fair project will help students learn about non-vascular plants, such as mosses.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This science fair project teaches students about wilting and browning of salad greens.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Construct batteries that make electricity from fruits with this fun science fair project.

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!