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Answer key

Chapter: 07. Forms Of Matter Solids, Liquids And Gases

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How are medicines an example of matter existing in different forms?
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Identify the form of matter for ice, liquid water, and steam.
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What is matter?
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Explain why sand is classified as a solid, even though it can be poured and takes the shape of its container.
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What did the activity with the pricked balloon demonstrate about air?
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Besides taking the shape of their container, how else do liquids behave regarding their movement and space?
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Why does the smell from incense sticks spread throughout an entire room?
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In what way do liquids interact with the shape of their container?
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State two distinct characteristics of solids.
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Give an example of a liquid mentioned and explain its importance.
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What unique property do gases have regarding the space they occupy?
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Name the three main forms of matter.
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How does water exemplify the three forms of matter?
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What eco-friendly action is suggested after conducting the liquid flow experiment?
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Provide an example of a solid and describe its use from the chapter.
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How do gases differ from solids and liquids in terms of having a fixed shape, fixed size, or occupying a fixed space?
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What is the process called when a substance like naphthalene balls changes directly from a solid to a gas?
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Mention a gas discussed in the chapter and its vital function.
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