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Multiple-choice test questions can be confusing. Here's a toolbox of tricks and strategies to help your teen become a multiple-choice master.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

Discover whether people can distinguish what a person looks like just by listening to their voice.

Science fair project that builds a magnetometer and demonstrate its uses.

Study and categorize the functions and types of genes. Run gene experiments chosen from links. Analyze data, explain ideas in a detailed report.

Design and build an invention inspired by Rube Goldberg's designs. Build your invention. Test the machine, write a detailed report.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

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

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

The objective of this science fair project it to determine whether adding ethanol alcohol to gasoline slows the run time of a motor.

This science project challenges high school students to study the linguistic evolution of text messaging.

This science fair project idea discovers the average time it takes for a person to remember something completely.

Explore the wattage of microwaves in relevance to cooking time.

This science fair project explores whether musicians are better than non-musicians at distinguishing and understanding speech in noisy environments

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

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

Demonstrate and explain holographic technology. Determine if a holographic image of a magnifier still magnifies the object beneath it. Explain the effect.

Design and build a balloon rocket from an existing design. Think of the ways in which existing designs can be improved, new practical applications

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

Discover which battery composition (type) lasts the longest.

This science fair project aims to examine the nature of pi and analyze other properties and values related to circles, such as radius, diameter

Explore whether pianists have the tendency to type faster than non-pianists.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

Science fair project that illustrates the properties of black holes in space.

Design a livable building that functions without electricity. Consider necessities, comforts and entertainment. Build a scale model of your design.

Examine spreadsheet functions and design a new way to utilize spreadsheets. Analyze a spreadsheet program to familiarize yourself with its capabilities.

Design an improvement for an existing website. Program improved feature, get website owner to implemement new design.