The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

Kids learn about Brownian motion, diffusion, and how temperature is a key factor affecting the rate of diffusion in this cool science project.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

Research Earthship buildings. Draft a unique architectural design that repurposes used, discarded radial tires. Build scale model of structure.

Study and categorize the functions and types of genes. Run gene experiments chosen from links. Analyze data, explain ideas in a detailed report.

This science project challenges students to take learned information about weather and climate control and apply it to come up with creative ideas of their own.

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

Research and understand basic computer science. Build a simple computer, following instructions found online. Design a new or improved feature.

This science fair project idea explores whether white light can be separated into different colors.

Design and build an invention inspired by Rube Goldberg's designs. Build your invention. Test the machine, write a detailed report.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Use a fish tank to simulate a pond! This science fair project explores the relationship between acid rain and the dissolved oxygen concentration of water.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Which bread molds fastest? Explore the different kinds of breads and how quickly they mold, along with the role of preservatives.

This science research project challenges students to think of more effective lobster farming methods.

This project examines whether humans can intuitively grasp numeric values greater than three.

In this science fair project, young children notice and track changes in trees throughout the year.

Monitor the impact learning how to play chess has an academic performance. Divide subjects into two groups compare GPA

Explore which teeth-whitening products work best - Whitestrips or Whitetrays.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

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

Detail the chemical properties, nutritional value, medicinal effects of garlic, Write a detailed report, prepare recipes.

Demonstrate and explain holographic technology. Determine if a holographic image of a magnifier still magnifies the object beneath it. Explain the effect.

Design and build a balloon rocket from an existing design. Think of the ways in which existing designs can be improved, new practical applications

Science fair project that demonstrates that rotting food attracts insects that lay eggs on it.