Plain your observations. What did you observe as you completed the task of measuring shadows each time hanged as you repeated your attempts? Submit your data chart here. plz i need a writing answer

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)

Calculate the percent composition by mass of each element in al(oh)3. use at least three significant figures.

What three things does a balanced equation show you?