Why is it important that our bones are hollow?
What can you predict from the fact that babies have more bones than adults?
Where are blood cells made?
Which part of the skeleton protects the lungs?
What mineral makes bone strong?
What is the purpose of white blood cells?
What two bones make up the skull?
How many bones do adult humans have?
Which life process is the skeleton the most important for?
What is the scientific name for the 'funny bone'?