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Showing Results for adding subtracting

Most parents probably wouldn't mind subtracting 8-9 years off their age. Here's a fun third grade subtraction activity that may do just that.

Subtraction Action

Try adding a splash of color to editing and revising with rainbow editing.

Rainbow Editing

Take play-dough to the next level with this homemade recipe, adding surprising ingredients perfect for summer!

Sand Dough

What happens when colored beams of light mix? You might be surprised.

Adding Colors: An Optical Experiment

Simple and straightforward, this money math game helps kids practice counting, adding change, and working with decimals.

Loose Change

Transform ordinary metal paper clips into wearable jewelry by adding beads and linking the clips together.

Paper Clip Bracelet

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Does Adding Salt to Pasta make it Cook Faster?

Make practicing addition facts more fun and teach your child the helpful strategy of adding quickly to 10 in this fun and easy-to-make card game!

Turn Over Ten: An Addition Game

This science fair project idea examines whether adding gelatin causes a solid  to have a higher melting point and/or melt slower.

Does Gelatin Slow Down the Melting of Freezer Pops? 

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Factors Affecting Solubility

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

The Chemistry of Dyeing Easter Eggs

Spice up your everyday vase with this fun craft adding colorful layers of beans to a regular vase. The beans add beauty and function, helping prop up flowers.

Layered Beans Vase

Add negative and positive numbers in this fun math card game for fourth graders!

Build & Take

Make subtraction practice more fun with this outdoor review game that's great for beginning math learners and more advanced!

Sidewalk Chalk Subtraction

Invite your first grader to play this subtraction sacks game to get her actively involved in understanding and memorizing subtraction facts.

Play Subtraction Sacks

Get back into school with this exciting architecture exploration! In this craft activity your child will research, draw, and build his own school.

Build an Architectural School Model

When it comes to money it isnât enough to know how much one coin or bill is worth. Make it all come together for your kid with this shopping activity.

Money Math: Shopping for Understanding

Get inspired by the summer skies for a delicious parfait that looks as good as it tastes!

Parfait Recipe

Learn all about cause and effect as your child experiments with an exploding pumpkin in this engaging fall activity! Get the whole family involved with this simple science experiment that is a fun and exciting way to combine Halloween and science.

Make an Exploding Pumpkin 

Help your second grader to a better understanding of how to count and represent money with age old game of tic-tac-toe.

Money Tic-Tac-Toe

Your second grader can honor two renowned U.S. Presidents--Abraham Lincoln and George Washington--by crafting larger-than-life pennies and quarters!

Homemade Coins

Forget mass-produced, store bought holiday ornaments. Your fifth grader can usher in the holidays by making his own homemade marbled Christmas balls!

Make Marbled Christmas Balls

Shake those dice and try to roll big numbers in this first grade math game. Practice addition in a new, fun way!

Roll the Dice

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!

Watch Acids and Bases Produce Colors!

Want to make math a little more exciting? This single-player game is designed to help your child practice combining cards to create sums of 14.

Making 14

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Can Jell-O be Made With Just Warm Water Instead of Boiling Hot and Then Cold? 

In this activity, your child will get a review of addition, subtraction, multiplication and division using classic domino pieces.

Play Domino Deal for Math Review!

Build your child's math skills with this 2nd-3rd grade activity. Similar to a carnival toss, this egg carton toss game is sure to provide hours of fun.

Egg Carton Game

This science fair project will help students learn about non-vascular plants, such as mosses.

Water and Mosses

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

Floating Balloons

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