Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This science fair project investigates why the number of visible stars changes from place to place.

In this science fair project, students create their own miniature salt flats at home.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

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

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

This science fair project idea compares biodiversity between drops of water.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

This science fair project idea explores which fruit molds the fastest.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.