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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.

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

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

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

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

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.

Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

Science fair project that studies how the brain transforms man-made symbols into meaningful concepts.

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

This science fair project idea determines whether eating before or after exercise is more beneficial to health and performance.

This science fair project idea compares whether ionic dryers leave hair in better condition than non-ionic dryers.

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.

Check out this cool science fair project idea to explore short and long term memory and whether there is gender differences in memory.

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

Science fair project about different digital image file types, compares different encoding algorithms used to compress the data.

This science fair project determines whether the types of plants growing in a Pacific Northwest rain forest environment are influenced by the soil acidity.

This science fair project idea determines effective strategies to help students stay awake and attentive.

This experiment evaluates if people have an accurate perception of how much personal time they spend interacting with technology.

This science fair project idea explores whether talking to a plant will help it grow.

This research project teaches students about synesthesia, a neurological condition that causes sensory overlap.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.