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This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Check out this cool science fair project on identifying rocks and minerals for kids.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

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

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

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

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

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.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

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

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

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

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

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

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

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

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

Here's an experiment that will have your child experimenting with cake ingredients to learn about the chemical reactions that happen when a cake's in the oven.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.