Determine which video game elevates the heart rate best and burns the most calories.

Valentine bookmarks make reading lovely. Make a valentine bookmark that looks like a heart-filled bookworm.

This simple art project will help your child think of nice words to say that come from the heart.

This Valentine's Day, learn a little more about the organ that keeps everything in your body going--the heart!

Focus on tasty savory dishes instead of sweet treats this Valentine's Day: make Caprese salad with heart-shaped mozzarella.

Your first grader can create this cute heart puzzle with craft sticks and watercolor paints to challenge her friends!

Make some cool hearts that are sure to brighten anyone's Valentine's Day. This project is a opportunity to play with overlapping shapes and show your love!

Crayon hearts add some Valentine's Day fun to your child's coloring pages. Make a set of crayons hearts as a beautiful gift for your child or a friend.

Make Valentine's Day breakfast special with this 'hearty' egg and toast recipe. This Valentine's Day breakfast gets a special twist with a heart-shaped egg.

Does fear cause the same physiologic responses in men and women? This experiment measures people's blood pressure and heart rate while watching a scary movie.

This project explores whether there is an effect on people, including heart rate and self-expressed mood, when they are exposed to different types of music.

Hop to this froggy Valentine's Day craft! Your little one will love making this unique Valentine's Day card, a heart-shaped paper frog.

Wax paper hearts are a unique and glittery gift for a special friend on Valentine's Day. Make wax paper hearts with your child this February.