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Create a colorful, informative display that illustrates the properties of blood cells. Prepare slides using samples of fresh raw beef or chicken bone marrow.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

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

Using a toy race car kids create a visual model of the Doppler Effect.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

A fun, life science sxperiment idea idea involving strategies for keeping birds away from crops using a distress call. What kind of distress call works best?

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

In this physics project, you'll learn how to find the maximum height of a projectile using some math and trigonometry.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Design and build a scale model representing living tree architecture. Then build a full-size version using one or more lives trees, and test your creation.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

Look for correlation between pH values of commercial soaps and detergents and manufacturer claims about eye irritation hazards.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

Calculate the mass of the Earth using the sidereal and calendar period of the Moon and Newton's Law of Universal Gravitation in this physics science project!

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.

The objective of this science project is to investigate why NASA has been using aerogel for the Stardust Project for collecting gas and dust from comets.

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 cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

Science fair project that examines the biodiversity of ant populations in various locations.

Culverts transport seeds away from their original location to different places. This science project examines the effect of culverts on plant growth in streams.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.