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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.

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Compare the ignition rates of various types of flame-retardant materials.

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

Study how liquids separate into layers by creating a liquid gradient, different density liquids separate into layers in a graduated cylinder.

Is your child a young ornithologist in the making?

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

Science fair project that explore how compound motion works by examining how gravity is affected by horizontal force.

Science fair project that examines the effects of soap on the surface tension of water. How does soap affect the surface tension of water?

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

Introduce your child to the wonders of colorful chemistry with this simple food coloring project.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

A simple science experiment exploring the physics of water pressure that's been amazing people since Medieval times.

This science fair project idea designs safe bicycle routes using GPS.

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

Free science fair project idea that examines the impact of gravity on a dropped carton of eggs. Design a device to protect the eggs from cracking.

This project compares different liquids and the freezing, melting and boiling points of liquids.

Looking for a project on fossils? Check out this fun science fair project idea to understand the process of coal formation and fossils part in that formation.

This science fair project idea investigates how the shape of an object affects drag.

This project determines how much the rebound rates of tennis balls change after ten games.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Monitor the impact learning how to play chess has an academic performance. Divide subjects into two groups compare GPA

This experiment investigates whether font choice affects peoplesâ ability to remember the information that they read.

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

The objective of this experiment is to evaluate which types of people are most impacted by the McCollough effect.

This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

Measure the porosity of rocks by submerging them in water. Measure how much water each rock "drank," by measuring the difference in water volume.

Detail the chemical properties, nutritional value, medicinal effects of garlic, Write a detailed report, prepare recipes.