4th - 7th Grade Engineering and Science Inquiry Resources : Page 4

This science fair project idea investigates how magnetism can defy the force of gravity.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Find out whether a longer airplane will fly farther or a wider paper airplane.

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.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

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

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

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

This science fair project idea investigates how color affects temperature.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

In this design challenge, students will be tasked with creating a bouncy ball polymer!

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Check out this cool science fair project on identifying rocks and minerals for kids.

This science fair project idea explores which fruit molds the fastest.

Find out which type of sponge holds the most water.

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

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

In this challenge, students are tasked with creating an insulated cup that will keep beverages colder for longer than a regular cup.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

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