a man holds a cup
a man holds a cup filled with a white substance
a man is holding a glass full of material
a man is talking over a cup of powder
a man shows an experiment of what will happen to calcium in the body
a person holding a cup of salt
a person is doing something with glasses
a person is picking up some cups
a person showing a glass of liquid
guy shows a chemical reaction in a cup
guys holding cups and talking
people are comparing cups of what calcium will do in your body
people explaining what a substance does when it reacts with calcium
scene from a tv show
someone is going to do something with a chemicals
someone showing how to make a smoothie
teenagers showing off calcium and talking about how it interacts in the body
the result of an experiment with calcium
two men discussing something about a drink
the result of an experiment with calcium