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Questions and Answers
What is the primary characteristic of matter that defines its existence?
What is the primary characteristic of matter that defines its existence?
- Its ability to undergo chemical change
- Its ability to occupy space and have mass (correct)
- Its ability to react with oxygen
- Its ability to change physical state
What is the term for a substance composed of only one type of atom?
What is the term for a substance composed of only one type of atom?
- Molecule
- Element (correct)
- Mixture
- Compound
Which of the following is an example of a chemical property of matter?
Which of the following is an example of a chemical property of matter?
- Texture
- Flammability (correct)
- Color
- Shape
What is the term for a physical blend of two or more substances?
What is the term for a physical blend of two or more substances?
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What is the primary reason why matter is essential for our survival?
What is the primary reason why matter is essential for our survival?
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Which of the following is not a physical state of matter?
Which of the following is not a physical state of matter?
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Study Notes
Matter in Our Surroundings
Definition of Matter
- Matter is anything that has mass and occupies space
- It can exist in different physical states: solid, liquid, gas, and plasma
Characteristics of Matter
- Physical Properties: characteristics that can be observed or measured without changing the composition of matter
- Examples: color, shape, size, texture, density, melting point, boiling point
- Chemical Properties: characteristics that describe the ability of matter to undergo a specific chemical change
- Examples: flammability, reactivity with oxygen, pH level
Classification of Matter
- Elements: substances composed of only one type of atom
- Examples: hydrogen (H), carbon (C), oxygen (O)
- Compounds: substances composed of two or more different elements
- Examples: water (H2O), carbon dioxide (CO2), ammonia (NH3)
- Mixtures: physical blends of two or more substances
- Examples: air, soil, blood
Importance of Matter in Our Daily Lives
- Matter is essential for our survival: food, water, air, shelter, clothing
- Matter is used in various applications: medicine, technology, transportation, energy production
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Description
Explore the definition, characteristics, classification, and importance of matter in our daily lives. Learn about physical and chemical properties, elements, compounds, and mixtures.
