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In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

Science fair project that examines the benefits of the plant enzyme: pectin methyl esterase (PME). Where is PME found in the plant? What does it do chemically?

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

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Research long-term effects and draft a questionnaire about frequency of marijuana use and average annual income. Interpret findings in a detailed report

This experiment explores how microwave radiation affects fungi, bacteria, and plant life.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

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.

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

This middle school science fair project evaluates test subjectsâ ability to determine what a person is feeling by reading their facial microexpressions.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

Science fair project which compares the rates of photosynthesis for various light sources. Which type of light will be best for photosynthesis and why?

By dropping a magnet through a copper tube, kids observe the cool (and bizarre) braking effect produced by the eddy currents predicted by Lenz's law.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Help your kindergarten or first grade child use his creativity to make a beautiful magnetic patterned structure while discovering the wonders of magnets.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

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 project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

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.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.