"uses for simple machines" whats a piano that needs to be moved up to a third floor apartment

Is this a scientific model? use complete sentences to explain why or why not. a graphic organizer showing the water cycle i need : ( asap i go it never mind

The boiling point of liquids is very high what does it indicate

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole