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

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

Hone observational skills and introduce the basics of data interpretation with this data gathering activity all about the different colors people wear.

Work on homophones, words that sound the same, and spelling with this imaginative activity!

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

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Practice multiplication facts and geography at the same time in this fun third grade math card game.

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.

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

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Representing the story in a visual way makes it easier for your child to compare the traits of various characters.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Calling all power-shoppers! This game is a fun way for kids to learn life skills, and flex their math muscles at the same time.

Coil your daughter's two favorite colors into a wearable pendant with just a few scraps of felt!

Help your child apply his math skills the next time you cook a family meal similar to one you'd buy at a restaurant.

Help your child improve his coin counting skills in these two math games that have him race to reach $1.00.

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

Your child can make a sweet and savory spinach strawberry salad; two ingredients that come together for a light and fresh summer dish!

Most often, a collage is 2-dimensional, but instead of using paper as a base, this project uses an inexpensive pumpkin from the craft store.

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 project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

El dia de los muertos (the day of the dead) is a Mexican holiday celebrated on November 1st and 2nd every year. Other Latin American countries celebrate a variation of the holiday, but it originates in Mexico and is unique to this country. These two days

This science fair project idea compares biodiversity between drops of water.

In this project, different brands of microwave popcorn are tested and compared.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This footwear-focused activity introduces fractions as part of a set and it's the perfect way to generate excitement about fraction concepts.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This science fair project idea investigates how the shape of an object affects drag.