Answer: experimenting with multiple substances
Explanation:because it says melting point of a new substance so that is the project there is no need to try it out with other substances if what he is trying to find is one
Answer:
Roman Catholic Church
Explanation:
They began using reason or logical reasoning instead of placing their beliefs in faith and demanding proof or evidence.
Pheidippides was important because he ran to sparta to gather spartian troops to fight against Persians.
Children according to Jean piaget gradually acquire the ability to understand the world around them through active engangement with it. the theory explain how children develop intellectual skills to interact and react with their environment.Piaget proposed that all children progress through a series of cognitive stage of development
The Answer is B. Created a race - based classification System
