A teacher is planning a lesson on 'Chemical Reactions'. Which of the following activities would be most effective for the 'Explore' phase of the 5E model?
AAsking students to memorize the definitions of different types of chemical reactions.
BProviding students with various substances and allowing them to mix and observe changes freely in groups.
CShowing a video demonstration of a complex chemical reaction without any student interaction.
DHaving students read a textbook chapter about chemical reactions and answer comprehension questions.