Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

Make sourdough bread...and learn some colonial history and modern science in the process!

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

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

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Challenge your learner to design and build a city of their own in this creative engineering activity.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

Try this chemistry experiment with your curious kid and get some "shocking" results!

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.