Objects and substances in motion is
i

Which statement describes evidence of a chemical reaction? a) ice melting eliminate b) water boiling c) lighting a match d) grape juice freezing

Over the last 90 years, scientists have added to the body of evidence supporting the big bang theory. what is the latest piece of evidence discovered in 2014?

Imagine that you push on a large rock. at what point does your effort change the rock’s mechanical energy?