I am sure that you have seen breakfast cereals that claimed to be enriched with iron. You may have thought that the manufacturer added some extract from spinach or liver, but the actual ingredient may surprise you.
Fingerprints are an important part of forensic science, allowing investigators to identify people who have been at a crime scene, or have touched objects. This is a simple way that you can try collecting fingerprints yourself.
One of the important ways that we learn about anatomy is by dissection. The word "dissection: may make you think of dead frogs in bottles of preservative, but you probably dissect things frequently. You just don't think of it as dissection. Instead, you think of it as dinner.