4th Grade Engineering and Science Inquiry Resources : Page 3

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

This science fair project idea explores whether talking to a plant will help it grow.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Find out whether packaged seeds actually do expire in this new science fair project idea.

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.

In this science fair project, students make their own rain gauge to measure rainfall.

This science fair project idea investigates how color affects temperature.

In this activity your child will create their very own marble maze!

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

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

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

In this design challenge, your child will create a parachute for a small toy using typical household items.

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

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

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.

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

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

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.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

In this CD hovercraft science project, students will construct their own DIY hovercraft.