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

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

Take a dive into the candy jar with this yummy science experiment.

Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.

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

High school kids learn about fruit fly ethology in this cool lab that determines fruit fly movement and behavior under different conditions. Check it out.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Determine if picking up fallen food in 5 seconds or less prevents the transfer of bacteria from the ground.

This science fair project idea investigates how images are influenced by changes in light.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

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.

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

The purpose of this science fair project is to learn which substance best preserves apples. Learn about enzyme interactions in fruit and scientific processes.

The objective of this science project is to determine whether a sweet tooth is most likely an inherited trait or a learned behavior.

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

How do organic materials become soil? This science experiment measures what materials biodegrade.

In this hands-on activity, kids learn what it takes to foster seedlings into full-grown plants, all in a regular old soda bottle!

This fall, make a leaf crown that will encourage creative play and your child's interest in the natural world while you help them build fine motor skills.

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

This project examines which style of central-air system filter traps the most particles from the air.

The weather is a key kindergarten science concept. With this activity your child will learn about wind direction and create a self portrait, too!

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.