Emma is explaining a complex chemistry issue to Kevin. She wants to make sure he understands and feels confident. Emma reassures Kevin during the presentation.
Vocabulary:
Catalyst: A substance that speeds up a chemical reaction.
Reaction: A process where substances change into new ones.
Process: A series of actions to achieve a result.
Safe: Not causing harm or danger.
Energy: Power needed to do work or cause change.
Practice more with this lesson:
