Science Assessment ~ Topics ~ Substances, Chemical Reactions, and Conservation of Matter ~ Misconception SCM042

If something grows in a closed system, the total mass of the system increases. For example, when a tree grows in a closed system, the total mass of the system increases (Mitchell et al., 1984) or when mold grows in a closed system, the total mass of the system increases (DeBoer et al., 2009).

Items that test for misconception SCM042 in this project (THSB) and key idea (Whenever substances within a closed…)
Item ID Number	Item Description	How Often the Misconception was Chosen	Select This Item for My Item Bank
SC075004	When mold grows on a piece of bread in a sealed container, the bag and its contents weigh the same before and after the mold start growing.	66%