The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

This homemade keepsake book is a great project for your fifth grader to make for someone special this holiday season!

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

Show your fifth grader how to create a vivid and colorful, Picasso-inspired, 3-D mask.

This fun and easy quiz show game will help your fifth grader memorize and study vocabulary from their math, science, social studies, and language arts classes!

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

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.

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!

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Here's a homemade bulletin board project to help your fourth grader's school year start off right.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

In this activity, learners will discover how to make a basic water filtration system using common materials found around the house or outside.

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

In this design challenge, your child will create a parachute for a small toy using typical household items.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

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.