This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

This science fair project investigates why the number of visible stars changes from place to place.

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

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

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

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.