The Science of Valentine's Day

Bees can't see which color?

What is the study of the human heart called?

How much did the world's largest chocolate bar weigh?

Chocolate comes from the beans of which plant?

Pink is considered a shade of red....

About how many times does the average human heart beat in one day?

How many species of roses are there?

What is the melting point of chocolate?

Which type of chocolate is said to be good for your health?

Which of the following is not a type of flower?