4th - 7th Grade Science Projects Activities : Page 14

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

This science fair project examines how seeds hitchhike on animals and clothing.

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

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.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

In this science fair project you will make a model of a cell membrane using very simple material.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

This science project allows students to study the psychology of happiness.

This experiment tests which gender is better at catching how a magician performs his tricks.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

Learn whether writing things down really makes things easier to remember.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

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

This science research project challenges students to think of more effective lobster farming methods.

The purpose of this study is to determine if people can tell the difference between organic and conventional food from looking at, smelling and tasting it.

This science fair project idea explores alcoholic fermentation at work by making your own soda.