This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

In this fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

This science fair project determines which type of physical activity most improves memory.

Determine which video game elevates the heart rate best and burns the most calories.

Help your child get to know the least-appreciated of the five senses, the sense of smell, with a smelling station.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

This science fair project idea studies how talking on a cell phone affect driving?

This science fair project idea demonstrates that plants give off water.

This science fair project idea quantifies growth of seedlings at various pH levels.

This project will examine the relationship between wind velocity and direction and the distance a baseball travels.

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

This science fair project idea experiments with spinning color wheels and optical illusions.

This science fair project idea identifies and understands adaptations in birds.

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

Science fair project that cultivates slime mold and monitors the stages of its development.

This science fair project idea quantifies the effect of specific food sources on red worm (Eisenia foetida) livelihood.

This science fair project idea experiments with unusual ideas in fashion design and the development of eco-friendly fashion products.

The goal of this science fair project is to demonstrate current methods of detecting counterfeit money, in particular counterfeit detection pens.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

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

Check out this cool middle school science fair project idea to find the difference between organically grown and commercial brands of foods.

Can you wink? Is your ability to wink genetic or simply based on chance? Find out in this science fair project idea!

Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.