Water is made of two hydrogen atoms and one oxygen atom bonded together. Julia is describing how water undergoes a physical change when it boils. She says that the particles shift to be farther apart and that the oxygen and hydrogen separate. She also says that the total mass of the steam is the same as the initial water, and that heat energy was required to cause the change. She finishes her description by saying that the steam can be turned back into water if it is cooled. Which is the mistake in her description?
Eugene describes the physical property of a material as “sweet and floral.” What physical property of the material is Eugene most likely observing?
Which statement best compares and contrasts two physical properties of matter?
When liquid gold becomes a solid, its particles get closer together. Which best describes what happened to the gold?
Serena is mixing a material into a beaker filled with a liquid. She notices that the material seems to disappear into the liquid. What physical property of the material is Serena most likely observing?
What happens when a substance undergoes a physical change?
Which is the property of matter in which a substance can transfer heat or electricity?
Which can occur in a physical change?
What is an example of a physical change?
Which statement about the physical change of liquid water boiling into steam is true?
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