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Challenge your high school student to find the flaw in this short mathematical proof that one is equal to two.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Does your child need counting help? Here's a simple game that kids can do at home to help them practice counting to two-digit numbers.

Help your third grader create a Venn diagram fantasy creature by combining two different creatures to create a fantasy creature based on their similarities.

Science fair project about different digital image file types, compares different encoding algorithms used to compress the data.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

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

In this activity, your child will write stories about two different people. The stories will include similarities and differences in the ways each person lives in their communities.

This science fair project idea teaches about the size of two different systems: the solar system and an atomic system.

Let your kid try his hand at engineering as he builds and tests two different structures made out of rolled newspaper. Which one is the strongest?

Air resistance is a crucial factor when designing a parachute. In this science fair project, students find what type of material works best as a parachute.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

This project will examine the relationship between materials and air resistance.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Demonstrate which cooking method gets rid of the most fat.

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

Compare and order numbers and introduce mathematical inequalities in this fun math card game.

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

This project compares the strength of one, two, and three-ply toilet paper.

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

Will male or female hair grow faster? Find out in this science fair project idea!

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

Sharing can be a challenge, and division doubly so! Practice halving numbers in this competitive card game.

Let your curious kindergartener experiment with this tasty combo as you sneak a little compare and contrasting practice into the mix

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 idea helps conceptualize probability. Compare probabilities and outcomes of cards drawn from a standard playing deck.

Test the combustion of different types of woods.

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

Explore the concept of receptive fields and why different parts of our body have different levels of sensitivity.