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๐ Topic Summary
Density is a fundamental property of matter that describes how much mass is contained in a given volume. In simpler terms, it tells us how tightly packed the molecules of a substance are. The density of a substance is calculated by dividing its mass by its volume. This lab activity will guide you through the process of determining the density of unknown materials using measurements of their mass and volume. Understanding density helps us identify substances and predict how they will behave in different situations.
๐งช Part A: Vocabulary
Match each term with its definition. Write the letter of the definition in the blank next to the term.
- ____ Mass
- ____ Volume
- ____ Density
- ____ Displacement
- ____ Meniscus
Definitions:
- The curve at the surface of a liquid in a container.
- The amount of space that a substance or object occupies.
- The amount of matter in an object.
- The mass per unit volume of a substance.
- The amount of fluid pushed away when an object is placed in it.
๐ Part B: Fill in the Blanks
Complete the following sentences using the words provided below.
Words: mass, volume, density, Archimedes', water
The formula for calculating ______ is: $Density = \frac{mass}{volume}$. To find the ______ of an irregularly shaped object, you can use the ______ principle by measuring how much ______ it displaces. The amount of matter in an object is known as its ______.
๐ค Part C: Critical Thinking
Explain why knowing the density of a material can be useful in real-world applications. Give at least two specific examples.
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