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Construct and experiment with a periscope using reflected light rays to gather an image.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

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

Explore the properties of light and color using photographic filters. Take pictures of color spectrum, compare results of different filters.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

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

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.

Evaluate whether people can raise the temperature of their finger using the power of their thoughts.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

In this science fair project, students determine whether a bean plant grows faster and taller using a traditional soil planting method or hydroponic method.

This project involves the programming and development of a 3D Rubik's Cube application using C++.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Construct a model of radioactive decay. Learn more about radioactive decay by modeling the process using coin flips.

This science fair project idea determines whether dogs can be trained faster using a food reward or praise.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

Science fair project that creates fog using bottles of hot and cold water.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

In this science fair project you will make a model of a cell membrane using very simple material.

Study emulsifiers and learn how they are used in food science, medicine, soaps and cosmetics. Identify which materials are created using an emulsifier.

Test for a correlation between perceived color and heart rate. Using a stethoscope and stop watch, measure the heart rate (beats per minute) of volunteers.

What kind of fabric holds dye best? How can you improve a dyed fabric's colorfastness? In this colorful project, test colorfastness using mordants and bleach.

Discover if soda geysers will erupt when using regular vs. diet cola and which candies will create eruptions.

This project involves the development of a website using free software online to promote the value of science.

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

Science fair project that examines search engine optimization, internet search trends using a statistical study of searched keywords.

Here is a kindergarten activity that blends art and science by using magnets, paint, and objects found around the house to create a picture.