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Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Make a backbone model to explore human anatomy and life science.

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

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

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

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

In this experiment we will be determining whether birds prefer certain colors of seed.

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.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

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

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Cleaning can be a chore, but not with this sudsy experiment!

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.