4th Grade Science Projects Activities : Page 4

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

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 create their own miniature salt flats at home.

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

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

This science fair project teaches students about wilting and browning of salad greens.

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

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

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

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

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

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

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

This science fair project idea determines which method of hand cleansing is the most effective.

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

Test whether plants can grow without sunlight and water.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

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

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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