With this activity, you'll be practicing adding and subtracting fractions, but the activity can be modified to refresh multiplication, division, and more.

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.

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

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.

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

This experiment will explore whether adding different substances to a gel affects its strength.

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

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

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

This counting activity helps preschoolers learn about number sequences and adding.

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

Heart math is a great way to celebrate Valentine's Day and familiarize your advanced preschooler with the concept of adding numbers.

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

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!

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

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various 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!

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.

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

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

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

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

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

Incorporate a lesson about metaphors into a writing and drawing project featuring one of the most classically recognizable of holiday icons: Rudolph!

Understanding how to add and subtract integers can be a challenge at first, but once you know how to handle the heat, it's a breeze!

Your child will enjoy getting math practice as they use bugs in addition and subtraction problems.

Give your fourth grader a head start in poetry with a simile writing activity that guides him in crafting a cute poem about the beloved family pet.

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.