This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

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

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

This activity challenges your student to use spatial reasoning and computational thinking to program multiple robots.

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

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

This science fair project explores how osmotic pressure forces water through the root up into the plant.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

This science fair project idea examines which type of insulation holds in the most heat.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

This easy at-home experiment is a great way to "see" science.

This science fair project idea determines the probability of a coin landing heads or tails.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

This science fair project examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

In this activity, your kid will watch coal turn into crystals right before her very eyes, and learn some science along the way!

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

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

Introduce your fourth grader to the concepts of solstices by observing the length of her shadow on the shortest day of the year, compared to other solstices.

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.