Lactose-free milk

Imagine if you felt ill every time you drank milk. People who are lactose intolerant have exactly this problem, and...

In this activity, students investigate the effect of the digestive enzyme lactase on a sugar found in milk called lactose....

Dairy farming has changed significantly over the centuries from hand milking to machine milking. The size of farms and the...

Imagine if you felt ill every time you drank milk. People who are lactose intolerant have exactly this problem, and...