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 science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Learning about how plants grow is a building block in the early grades science curriculum. Put a fun twist on this life science concept with these cup monster friends!

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

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

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

In this project children practice the scientific method while playing with puffy paint.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

This project determines what category of person is most likely to be ticklish.

Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Help your child learn about animal classification with this fun and delicious activity.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

This project investigates the affect of storage temperature on microwave popcorn.