Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

In this project, waves of vibrations are experimented with using water in glasses.

Children learn the six parts of a plant...but do they really understand? Try this plant-themed meal plan to bring school science into the home.

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

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.

This science fair project idea determines if family members can recognize one another using only the sense of smell.

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

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

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

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.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

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

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Follow in the footsteps of movie character legends as you walk your little one through the steps of becoming a junior archaeologist.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Set up a fun guessing game for your curious kindergartener, one that will test her ability to use all five of her senses.

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

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

You don't need to wait for rain to see a rainbow. Make one yourself, and teach your child about light and weather in the process.

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!