What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

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

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

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

In this open-ended activity, students will be given a small quantity of three types of materials and asked to design a prototype for “something that will improve the school.”

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Examine the effect of pressure on carbonation in soda.

This activity challenges your student to use spatial reasoning and computational thinking to program multiple robots.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

Science fair project that examines condensation and the conditions needed in order for dew to form.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.