This project compares the strength of one, two, and three-ply toilet paper.

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

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

Crystals are a very special structure. In this third grade activity, your child will learn how to grow salt crystals.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

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

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Learn about different fern fronds with your third grader as you create lacy, natural decorations on your Easter eggs this year.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

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

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

In this project students experiment with making music using only glasses of water.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

In this experiment we will be determining whether birds prefer certain colors of seed.

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 some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.