4th - 7th Grade Science Projects Activities : Page 5

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!

This science fair project idea investigates how color affects temperature.

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

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

This experiment evaluates if a noisy environment makes it harder for test subjects to perform tasks that require hand-eye coordination.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Science fair project that examines condensation and the conditions needed in order for dew to form.

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

In this experiment you will replicate the mummification process by making a hot dog mummy.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.

This basketball project explores the best way to make the perfect shot every time.

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.

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

This project examines Newton's First and Second Laws of Motion with a bicycle and water balloons.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

In this science fair project, students create their own miniature salt flats at home.

This science fair project idea explores substances that cause a bubble to last longer.