Science Assessment ~ Topics ~ Substances, Chemical Reactions, and Conservation of Matter ~ Misconception SCM083

New atoms are created during chemical reactions (AAAS Project 2061, n.d.).

Items that test for misconception SCM083 in this project (THSB) and key idea (When substances interact to form ne…)
Item ID Number	Item Description	How Often the Misconception was Chosen	Select This Item for My Item Bank
SB002002	During a reaction where a reactant enters the system and no products leave, the mass of the system increases because the system now contains more atoms.	17%

Items that test for misconception SCM083 in this project (THSB) and other key ideas
ME049002	When a sea star regrows lost arms, most of the additional mass comes from atoms that made up the food the sea star ate.	53%
SC043005	When baking soda and lemon juice react in a sealed plastic bag, the weight will not change because the number of each kind of atom does not change.	42%
ME022001	Matter is not created when living organisms grow. The matter added to their bodies comes from atoms that were outside the organism.	40%
ME062001	When kelp grows, it takes in atoms from the environment that become part of the kelp.	24%
ME041001	The solid wood of a tree comes mostly from carbon dioxide gas molecules from the air.	0%