Try this simple activity with your middle schooler to help him develop an understanding of why scientific classification systems exist and how they work.

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

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

This guessing game is a hoot. And it helps teach kids to categorize a set of objects-- a key skill for preschool.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

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

Use a dichotomous key to identify plants or animals.

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

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

Does your kid have a stash of sweets left over from Halloween? Turn that pile of candy into a learning opportunity with this sorting and categorizing activity.

Science fair project that determines which types of clouds are best at blocking harmful UV radiation.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

First graders are learning to think like scientists. What better place to start, then by raising tadpoles? This hands-on activity explores science in action!

This social science experiment endeavors to determine whether certain types of animals provide greater physical and mental health benefits to their owners.

Science fair project that explores the variety of webs that spiders weave and collect specimens for identification.

Here's an arts and crafts guide for your high-school teenager that'll help her create a naturalist drawing and painting.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

This science fair project idea focuses on the use a conductivity device to determine the ionic concentrations of hard water.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

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.