Competitors go head-to-head only this time it's a race to figure out the lowest common multiple of two numbers; an important step to working with fractions!

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Race to double numbers in this competitive card game. Try one-digit or two-digit numbers, or more!

This science project establishes a "breakability index" - basically to assess how much damage is done in different circumstances.

This two-ingredient dough, sometimes called "moon sand," is a quick and cheap way to let kids explore their senses, build fine motor skills, and play.

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

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.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This surprisingly good glue recipe comes from common kitchen items.

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.

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

This experiment explores the most common colors that appear among a sample of crossbred guppies.

Here's a hands-on way to help your child understand how common fractions can be equivalent.

Use common kitchen tools to create an entirely uncommon work of art!

This experiment uses personality assessments to evaluate if certain personality traits are more common in people with unusual first names.

This science fair project idea explores what common compounds can be easily separated out in a centrifuge.

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

This project explores the effectiveness of various common household ingredients in cleaning tarnished and oxidized coins.

This school bus is easy to make, and all you need are some common household items.

This reading activity combines some of the most common sight words with a pictograph puzzle that's sure to keep your kindergartener engaged.

Science fair project that compares tap water and bottled water for the presence of common impurities.

Recognizing number patterns is an important ability on the SAT. Here's a game that teaches your student some of the most common sequences in mathematics.

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

Research responsibilities of physicists, and common thinking patterns. Devise a questionnaire that measures career aptitude in physics.

Use the appeal of the common road sign to your advantage by creating a game with hidden learning opportunities.

Young scientists develop a hypothesis, conduct an experiment, and then revise their hypothesis to find out which common household liquids dissolve candy corn.

In this science fair project, students evaluate test subjects to determine if certain personality traits are more common in frequent users of social media.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

Engage your third-grader in this version of the classic game and she will get lots of practice using mental math to solve addition and subtraction problems.

Here's a review of some common (and commonly confused) grammar terms, as well as a quick activity to apply them to reading and writing.