Matter: Mass, Volume and Density Flashcards

Mass, Volume, and Density

• Mass: The quantity of matter in an object, typically measured in grams (g) and kilograms (kg).

• Instrument for Mass Measurement: Balance is used to accurately determine mass.

• Volume: The space that an object occupies, measured in cubic centimeters (cm³) and milliliters (mL).

• Instruments for Volume Measurement: Volume can be measured using a ruler for regular shapes and a graduated cylinder for liquids.

• Density: Defined as the mass per unit volume, indicating how much mass is contained in a specific volume (g/cm³).

• Density Calculation: Density is calculated using the formula: mass divided by volume (density = mass/volume).

• Units for Density: Commonly expressed in grams per cubic centimeter (g/cm³).

Properties and Changes

• Physical Change: A process where the substance alters in shape, color, or amount without changing its identity.
• Chemical Change: Involves a transformation resulting in one or more new substances with distinct properties.

Observations

• Qualitative Observation: Descriptive observations based on physical attributes like shape, color, and appearance.
• Quantitative Observation: Observations that quantify data using numbers, providing measurable information.
• Inference: A logical conclusion derived from observations, providing explanations for phenomena.

Characteristic Properties

• Characteristic Property: A specific trait that can be utilized to identify and classify a substance distinctly.