4th Grade Science Projects Resources : Page 5

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

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.

This science fair project idea determines what household items are good conductors of electricity.

In this experiment we will be determining whether birds prefer certain colors of seed.

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

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

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

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

Test whether plants can grow without sunlight and water.

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

This project determines what category of person is most likely to be ticklish.

Do different types of oil mix or stack? Find out in this science fair project idea!

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

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

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

This science fair project idea investigates how color affects temperature.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Construct and experiment with a periscope using reflected light rays to gather an image.

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

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.