Help your little builder move up in the world with this recycled cardboard castle that's just the right size for a young king and his loyal stuffed subjects.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Pumpkin carving party activities are great for a pre-Halloween party. Try pumpkin carving party activities, including jack-o'-lantern ideas and fall recipes.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

The objective of this science experiment is to evaluate the affects of high and low heat capacity on a material's heat retention ability.

Delay your child's sugar overload, and develop his critical thinking skills, by doing some "sweet sorting" of his Halloween treasures!

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

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

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

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

Check out this fun science fair project idea to learn how alkaline batteries convert chemical energy to electrical energy?

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

These delicious Easter Basket Cupcakes are a simple, creative holiday treat. These cupcakes sit in waffle bowls with festive coconut grass and jellybean eggs.

Teach your child what a sugar plum is with this easy recipe that gets your child to chop, mix, and roll his way to a delicious treat.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

This project examines the concentration of dissolved oxygen in water, with and without oil.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

Check out this fun science project to explore the relationship between solubility, drug absorption, and time required for a drug effect to become apparent.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

This science fair project idea measures physical dexterity as a function of temperature.

Homemade Halloween treats make great party foods for an All Hallow's Eve get together. These four homemade Halloween treats are scary-good.

In this activity, have your second grader practice measuring by finding the height, weight, and length of their most treasured toy!

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.