In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

This science fair project idea determines what household items are good conductors of electricity.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

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

This science fair project idea determines what household items are good conductors of electricity.

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This science fair project idea investigates whether air has mass and weight.

This science fair project idea investigates if fats add to the flavor of food.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

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

Is it a square or a circle? See if you can trick your friends with this zany science 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.