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Flashcards: States of Matter 34 Flashcards 
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Card: 1 / 34 
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What defines a solid state of matter? |
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A solid has a definite shape and volume, with molecules that are closely packed. |
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Fill in the blank: Liquids take the shape of the container they are kept in, but they have a ___ volume. |
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Fixed |
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True or False: Gases have a definite shape and a fixed volume. |
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False. Gases do not have a definite shape and do not have a fixed volume. |
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What is the key difference between the molecular arrangement in solids and liquids? |
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In solids, molecules are closely packed and vibrate in place, while in liquids, molecules are loosely packed and can move freely. |
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Riddle: I can flow and take the shape of my container, but I am not a solid or a gas. What am I? |
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A liquid. |
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Fill in the blank: Matter is made up of tiny parts called ___. |
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Molecules |
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What state of matter is characterized by the ability of molecules to move randomly and not having a fixed volume? |
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Gas |
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Which state of matter has a definite shape and does not change shape when moved? |
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Solid |
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Multiple Choice: Which of the following is NOT a state of matter? A) Solid B) Liquid C) Gas D) Energy |
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D) Energy |
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True or False: Air is a mixture of many gases. |
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True |
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What happens to a solid when it is heated? |
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A solid changes into a liquid when it is heated. |
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True or False: Ice can change directly into gas without becoming liquid first. |
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False, ice must first melt into water before it can evaporate into gas. |
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Riddle: I can be frozen, melted, and boiled, but I am not a solid or a gas. What am I? |
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Card: 26 / 34
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Liquid  |
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Card: 27 / 34
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What are the three states of matter? |
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Solid, liquid, and gas.  |
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Fill in the blank: When a liquid is frozen, it becomes ___. |
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Card: 30 / 34
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Solid  |
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Multiple Choice: Which of the following changes is an example of sublimation? A) Ice melting into water B) Water evaporating into vapor C) Dry ice turning into gas D) Water freezing into ice |
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C) Dry ice turning into gas  |
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What causes matter to change states? |
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Changes in temperature can cause matter to switch from one state to another.  |
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 Completed! Keep practicing to master all of them. |
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