5th Grade Life Science Projects

This science fair project idea determines if family members can recognize one another using only the sense of smell.

This science fair project has kids conduct a blindfolded taste test to determine how smell influences our ability to taste foods.

This science fair project idea discovers which parts of the body are more sensitive to touch than other parts of the body.

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

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

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.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

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

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 teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

This science experiment tests if dog saliva can really help heal wounds.

This science fair project teaches students about wilting and browning of salad greens.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

This science fair project challenges students to study how camouflage and environment are related in squirrel populations.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

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

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.