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Showing Results for and least common multiples

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!

Play Common Denominator War

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

Testing the Solubility of Common Liquid Solvents

This game reinforces the meaning of the term "multiples" and is fast enough to hold the attention of your fourth-grader.

Play Two-Minute Multiples

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

Potato Battery

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

Fold for Fractions!

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Forensic Entomology and the Life Cycle of the Blowfly

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

Make a Better Paper Airplane 

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

Candy Corn Science

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.

Grammar Guide

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

How Much Sugar?

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

Are There Other Animals that Glow Under a Black Light Besides Scorpions?

In this activity, learners will discover how to make a basic water filtration system using common materials found around the house or outside.

Understanding Clean Water: Make a Filtration System

Make environmentally friendly, chemical-free toothpaste using one of the most common, inexpensive pantry staples in the American kitchen: baking soda.

Make Baking Soda Toothpaste

What do a pool, a raft and a golf club have in common? They are all integral ingredients in the fun game of Aqua Golf, a great activity for kids of all ages.

Water Golf

The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

Inspect Animal Tracks

One thing the Christmas season is known for making is yummy treats! Cookies, pies, fudges, and cakes are common desserts during Christmas time. If you want to choose a healthier option this holiday season, create a Christmas tree with fruit. It will be a

Create a Christmas Tree With Fruit

In this experiment you will replicate the mummification process by making a hot dog mummy.

Hot Dog Mummy

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Foam It! Cause a Chemical Reaction

Help your fourth grader design a first class postage stamp for a hero who stood up for the dignity of people from all walks of life.

Martin Luther King Stamp

Your child can personalize these customizable cookies for friends and family as he makes his own fortune cookies from this fortune cookie recipe.

Fortune Cookie Recipe

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

Microscopic Life is Everywhere

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Six Degrees of Separation 

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Geology 101

Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.

Mother's Day Carnations

If you are looking for a special way to celebrate dad on his day, help your little one to design a creative letter photo collage.

Father's Day Collage

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Cats & Dogs

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

Test for Acids or Bases Using...Flowers!

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

Echoes: How Sound Waves are Reflected and Absorbed

Even if sweet potatoes aren't your kid's favorite, try topping them with fluffy marshmallows -- it will be tough to find a child who can resist!

Bake Sweet Potato and Marshmallow Casserole

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

Identify Trace Fossils

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