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Questions and Answers
Which of the following best describes what an observation is?
Which of the following best describes what an observation is?
- A theory developed based on experimental results.
- Anything about an object that can be perceived by the senses. (correct)
- A classification of objects based on color only.
- A measurement taken using scientific instruments.
What property of an object describes how hard or soft it is?
What property of an object describes how hard or soft it is?
- Weight
- Hardness (correct)
- Density
- Volume
Which term refers to the property that indicates if an object can bend?
Which term refers to the property that indicates if an object can bend?
- Toughness
- Softness
- Rigidity
- Flexibility (correct)
Which of the following materials is classified as a solid?
Which of the following materials is classified as a solid?
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Which of these does NOT belong to the five senses?
Which of these does NOT belong to the five senses?
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Study Notes
Classification of Matter
- Classification is based on common properties such as color, weight, size, and shape.
- Grouping similar objects aids in understanding and organizing matter.
Definition of Objects
- Objects are comprised of materials and can be defined as tangible items made from these materials.
Observational Science
- Observations involve gathering information about objects through the five senses: hearing, touching, smelling, tasting, and seeing.
Properties of Matter
- Hardness determines the physical toughness, indicating whether an object is hard or soft.
- Texture refers to the tactile quality or feel of an object.
- Flexibility describes an object's ability to bend without breaking.
States of Matter
- The two primary states of matter discussed are solids and liquids, both essential components in the study of physical science.
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