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Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Make sourdough bread...and learn some colonial history and modern science in the process!

In this wind tunnel experiment, you'll make a wind tunnel to test lift and airflow on a model plane and explore aerodynamics and the Bernoulli Principle.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This science fair project idea explores the different properties & interactions of sugar molecules.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

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.

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

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

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.