Do you love playing tricks on your friends? Stump them with a mystery smell balloon! Just follow the simple steps inside this book.

Do you love playing tricks on your friends? Stump them with a mystery smell balloon! Just follow the simple steps inside this book.

"The World Through Picture Books (WTPB) is a programme of the IFLA Libraries for Children and Young Adults Section in collaboration with IBBY (International Boa

"Simple text and full-color photos instruct readers how to build flipsticks and explain the science behind the activity"--

"Simple text and full-color photos instruct readers how to make a mystery smell balloon and explains the science behind the activity--in both English and Spanis