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.

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.

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.

Your child will look forward to lunchtime with this artistic reinterpretation of the same old cold lunch.

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.

Build your child's vocabulary and get his body moving at the same time with this fun dance map activity!

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

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

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.

Give your child a chance to review his knowledge of safety and show off his writing skills at the same time by writing a safety manual to share at home.

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.

This variation of Duck, Duck, Goose is played in pairs, which means a lot more activity for participants!

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

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.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

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

Looking for something to do with all those plastic 2-liter bottles that seem to accumulate endlessly? Turn them into a unique mini birdbath.

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!