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

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

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

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

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

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Determine whether the application of Febreeze will lower the bacterial count.

Help your kindergartener identify and sort eight different kinds of common seeds on this "seed wheel" plate you can use all growing season.

Investigate how to keep your fruit fresh for longer. The purpose of this science experiment it to determine which kind of bag best preserves fruit.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)

In this project, you will observe and record changes in sunspots over two weeks.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

Your child will create an adorable Christmas tree from their footprint and practice counting while decorating their tree with objects of a variety of textures.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

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.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

This science fair project idea investigates the hardness property of minerals.

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

Your preschooler is familiar with the colors in their crayon box, but can they find these colors in the world? Take them on a scavenger hunt to find out!

Kindergarten algebra is a lot different than high school. In kindergarten math, algebra means grouping like things, or noticing what doesn't belong in a set.

This science fair project teaches students the differences between fruits and vegetables.

This science fair project examines the vein structure (venation) of leaves in order to determine the class of the plant sample.

This experiment evaluates if personality influences whether a person prefers dogs or cats.

How can you tell the difference between a spider and an insect? Your child will find out as he makes a tray of yummy creepy crawly snacks.