Reviews the definition of a change of state and the processes that cause changes of state.
Come up with questions about a topic and learn new vocabulary words to determine answers using an Ask, Answer, Learn table.
Discover how frost increases the risk of avalanches and endangers snow sports enthusiasts.
Find out how forensic scientists reveal hidden fingerprints and analyze them to solve crimes.
Discover what causes mold to grow in homes and how it can be prevented.