In this science project, baking powder and vinegar are used to simulate the action of a fire extinguisher.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

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

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

By using static electricity generated from their body, a child can cause a small fluorescent lamp bulb to light up!

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

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

This science fair project idea investigates the difference in reaction times between boys and girls.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

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

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

In this activity, your child will make her own "quicksand" to better understand how a substance can be both fluid and solid at the same time.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

In this design challenge, your child will create a parachute for a small toy using typical household items.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

This science fair project teaches students about wilting and browning of salad greens.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.