An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Planning a beach vacation? Here's a cool nature craft you can make in the sand with your child.

If your child aspires to be the next Frank Lloyd Wright, we've got some tips on building sand castles that last.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Use dirt and different colors of craft sand to make unique layers in a clear plastic cup to represent the layers of the Earth.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

What better way to celebrate spring than with a fabulous flower party? Pack the day with fun flower activities and treats for a truly springalicious event!

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

Challenge your young dinosaur lover to examine dinosaur footprints and then create their own dinosaur fossil in this hands-on activity.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

Learn how different types of soil affect how animal tracks form in this experiment!

Help your child make a beautiful homemade sandcastle that will last!

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

Help your child celebrate the summer and the sun by making a sandy seascape.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

Help your kindergarten scientist explore an important part of earth science: how soil retains water.

In this science fair project you will make a model of a cell membrane using very simple material.

Kids are sure to be entranced by the magic of the ocean when they create their very own ocean in a bottle.

This science fair project idea explores the different properties of matter.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

This winter garden project is just about bomb-proof, and believe it or not, it might even make a great gift. So get craft happy with your first grader!