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

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

Do different types of oil mix or stack? Find out in this science fair project idea!

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

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

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

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

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.

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

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

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

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.

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

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

The project investigates how friction affects motion by using different surface textures.

Determine if gender affects the ability to identify different smells.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

This science fair project idea explores whether white light can be separated into different colors.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Channel the artistic spirit of Romare Bearden by making a mixed media collage to express different moods.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

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

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

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

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

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

In this activity, your child will learn about the different parts of the brain and how mindfulness can build connections of calm.