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This science fair project idea tests the efficiency of short term memory.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

This fun activity makes use of pasta shells, paint, and glue make a crab while your child learns about this unique creature.

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

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.

Determine which factors promote the greatest memory interference. Administer test, time how long it takes subjects to complete different tasks.

Design a hearing protection device to protect their ears from loud noises. Examine the properties of current protective hearing devices, materials.

Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.

This experiment evaluates how much influence an enticing package has on childrensâ willingness to try a new snack.

Introduce your child to preliminary science concepts by challenging them to do this fun and simple cloud observation activity.

Science fair project that explore how compound motion works by examining how gravity is affected by horizontal force.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

Store bowls of fresh fruit in differently lighted environments. Contrast freshness based on appearance.

Make an edible play dough with your child to help her develop her sensory and motor skills.

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

This experiment will explore whether fractals really repeat themselves infinitely.

This science fair project idea addresses tempo, and whether faster or slower music works better as a study aid.

This science fair project idea provide quantitative data about how well the use of ASL ( American Sign Language) works in communicating with babies.

How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.

This potato cannon activity teaches your middle schooler about the principle of Boyle's Law. Make a potato cannon and have a blast learning about science.

This science fair project idea explores the fastest average speed a human can talk.

This activity will help your child review science concepts, learn new ones, and become familiar with examples of various concepts in science. Plus, it's fun!

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

This slightly messy, but tons-of-fun tactile activity will cement the idea of the land and water as pictured on maps in your young learner's mind.