Explain how a bucket of water would be an open system? Enter your answer in the space provided.

Open systems will let items in and a closed system does not let anything in.

A leaky bucket is an "open system." A tank with a secure lid, with no leaks, is a "closed system." If you know how much water you put in a closed system, and how much water you take out, then you know how much water is in the tank at any given time.