2nd - 4th Grade Science Projects Resources : Page 6

This project compares the strength of one, two, and three-ply toilet paper.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

In this science fair project, students use the streak test to tell minerals apart from each other.

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.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

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

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

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

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

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 explores how length affects the weight a bridge can hold.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

This science fair project idea investigates if webbed feet help a duck (and others) swim.

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.