This science fair project idea produces sounds by creating vibrations using different objects.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

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

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

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

Your child can explore the wonders of science, and the concept of dehydration, along with creating a healthy and tasty treat!

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

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

Take advantage of the spring and summer sun in this arts and crafts activity that has your learner creating pretty flower prints.

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.

In this activity, students will create a stop motion animation by creating a clay figure and taking a series of digital photographs.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

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 idea investigates emulsifiers that allow oil and vinegar to mix.

This science fair project idea experiments with spinning color wheels and optical illusions.

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

This science fair project idea provides evidence that air is everywhere and takes up space.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

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

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

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

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 hands-on design challenge your child will make their very own Rube Goldberg Machine.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.