Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Boost your child's imagination and creativity by having her design her own deck of trading cards.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Find out whether a longer airplane will fly farther or a wider paper airplane.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Your child will have a blast creating this adorable black cat with a cardboard tube and some pipe cleaners. A perfect craft for Halloween decorating!

Looking for a way to channel your spring fever? Create a beautiful spring centerpiece with your child!

Create some cards and a factor board and get ready to practice multiplication. This game will help your kid get one step closer to memorizing times tables!

With this fun craft activity, your child can design and "make" his own money, for use as currency and math practice at home.

Don't throw that Sunday paper away just yet! If you've got a kid who thinks she's "too old" for crafts, introduce her to beautifully simple newspaper flowers.

Movement activities are crucial for developing minds and bodies. Animal movements, in particular, encourage children to think about their own body mechanics in comparison with animals they may have observed.

In this science fair project you will make a model of a cell membrane using very simple material.

This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.

This science fair project idea investigates the hardness property of minerals.

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.

Children will learn why and how to compost as they help with the process of filling their compost, turning it, and observing the changes that occur.

This science fair project idea examines which type of insulation holds in the most heat.

Hair ties don't have to be plain old elastic circles. Your child can decorate her hair with beaded hair bands that add flair to her hair!

Children will discuss what it means to have healthy friendships and create a unique friendship painting that illustrates the qualities of good friends.

In this activity, you and your child will watch a video and learn how the brain easily remembers negative information, but not always positive. You will practice positivity by writing or drawing pictures of 10 positive things that happened today.

Help your child comprehend the past by using hands-on activities like this homemade lantern project.

Invite your child and a few friends to get crabby in this game of soccer with a twist: Instead of running, players "crab crawl" around the playing field.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

If your third grader is having difficulty sequencing events in a story, try creating this book square.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

Play Tip It, a silly and rowdy game that kids love!

Encourage your child to take ownership of a plant by creating a care plan and following it over the course of a couple of weeks.