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This chart shows descriptions of the atoms for four different substances.

\begin{tabular}{|c|c|c|c|}
\hline
Object 1 & Object 2 & Object 3 & Object 4 \\
\hline
Slide past each other & Are very viscous & Form a crystal & Spread out to fill their container \\
\hline
\end{tabular}

Which substance is a solid?

A. Object 1
B. Object 2
C. Object 3
D. Object 4



Answer :

GinnyAnswer
To determine which of the substances is a solid, we need to examine the descriptions provided for each object and match them to our knowledge of the properties of solids, liquids, and gases.

1. Object 1: Slide past each other
- This description fits the properties of a liquid. In liquids, molecules slide past each other, allowing the substance to flow and take the shape of its container.

2. Object 2: Are very viscous
- Viscosity refers to a liquid's resistance to flow. A highly viscous substance flows slowly. Therefore, this description also points to a liquid, just a thick one like molasses or honey.

3. Object 3: Form a crystal
- The formation of crystals is characteristic of solids. In a solid, the atoms are arranged in a specific, ordered pattern, typically forming a crystal lattice.

4. Object 4: Spread out to fill their container
- This is a characteristic of gases. Gas molecules move freely at high speeds and spread out to fill the volume of their container.

Given these descriptions, the substance that forms a crystal (Object 3) fits the definition of a solid. Therefore, the solid substance is Object 3.

Final Answer: Object 3

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