4th - 7th Grade Science Projects Activities : Page 3

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

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

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

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.

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

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

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering 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.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

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

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

What happens when "coffee-addicts" miss coffee for 1 day? Find out in this science fair project idea!

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

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

This project will explore whether test subjects, deprived of points of reference, will, in attempting to walk a straight course, walk in circles.

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.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This experiment investigates the relationship between the temperature of a candle and its burn rate.

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

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

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

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

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

In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.

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

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.

This science fair project idea determines if the color of light affects the growth of plants.