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This science fair project idea discovers the principle of conservation of mass.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Measure the speed of the earth's rotation using protractors and meter sticks. This science fair project measures the angle of the sun in relation to earth.

Science fair project that demonstrates the principle of conservation of mass by conducting a chemical reaction inside a sealed Ziploc bag.

Science fair project which compares the rates of photosynthesis for various light sources. Which type of light will be best for photosynthesis and why?

This science project teaches students to classify different shapes of leaves.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Detail the chemical properties, nutritional value, medicinal effects of garlic, Write a detailed report, prepare recipes.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Research historic methods of food preservation. Analyze alternative recipes and techniques of food preservation. Document success with photographs.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

Help your child get to know the least-appreciated of the five senses, the sense of smell, with a smelling station.

Science fair project that teaches you key definitions of molecular science, and how different isotopes of an element affect the relative atomic mass.

Kids learn about Brownian motion, diffusion, and how temperature is a key factor affecting the rate of diffusion in this cool science project.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

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.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.

This exploration of different types of energy will help young minds appreciate and observe thermal, kinetic, mechanical, and other forms of energy.

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

This science project has students study the idea of human beauty.

In this experiment you simulate radioactive decay in order to gain an understanding of the basics of half-life.

Test the combustion of different types of woods.

This experiment will explore how manipulating a graph of historical information might reveal new information about data.

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