The 100th day of school is an important benchmark for kids in the lower elementary grades. Help your kid create a 100 days of school shirt to celebrate!

In this science fair project, students use the streak test to tell minerals apart from each other.

Celebrate the new school year with a back to school poem!

Prepare for school the washi tape way with some washi tape school supplies!

Celebrate 100 fantastic days of school by creating a school-themed collage with 100 pieces in this unique arts and crafts activity.

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

Get fired up for the new school year with a "Back-to-School Calendar" you and your child can make at home.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

Get into the back-to-school spirit with this clip magnet that'll make sure your first grader never loses his important school papers again!

It's that time of the year again! Celebrate the start of a new school year with a back to class bash, complete with arts and crafts, food and games.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

As your child heads back to school this fall, dust off those elementary math skills with our creative calendar activity!

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Make a First Day of School Mobile to help commemorate the big step from preschool to kindergarten and ease those first day jitters!

Here's an arts and crafts activity to help your child put together his own "Back to School" scrapbook.

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

Celebrate the 100th Day of School by making an amazing sculpture using recycled materials.

Celebrate the 100th day of school by making a unique work of art using 100 colorful pom poms in this fun kindergarten arts and crafts activity.

Make the 100th day celebration extra special by creating your own 100th Day of School Top Hat.

Put your individual fingerprint on the 100th Day of School (literally!) with this activity.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Looking for a unique arts and crafts activity that gives some writing practice? Help your child make her own back-to-school business cards!

Here's a homemade bulletin board project to help your fourth grader's school year start off right.

This project commemorates the milestone of completing the first 100 days of school, while giving your child a manipulative to practice counting to 100.

Instead of tossing old school supplies, turn them into a work of art and teach your kids how to find new uses for old things.

Celebrate the 100th Day of School by making a collage frame that can showcase your childâs favorite piece of art.

Make a photo book to provide a reassuring guide for your child's first days and weeks of school.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

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

Make a brag sash with your child to celebrate an amazing school year filled with accomplishments.