Properties of Matter worksheet for Grade 3, focusing on identifying and describing the physical properties of matter.

Problem Analysis:

The task involves filling in blanks in a worksheet about the Properties of Matter for Grade 3. The goal is to identify and explain the properties of matter, such as states (solid, liquid, gas), physical characteristics, and examples.

Solution Explanation:

#### Step 1: Understand the Context
The worksheet is designed to teach students about the different states of matter (solid, liquid, gas) and their physical properties. Students need to match terms with definitions and provide examples.

#### Step 2: Fill in the Blanks
Let's go through each section of the worksheet and fill in the blanks logically.

---

#### Section 1: States of Matter
- Solid: A solid has a definite shape and volume.
- Liquid: A liquid has a definite volume but takes the shape of its container.
- Gas: A gas has neither a definite shape nor volume; it expands to fill its container.

#### Section 2: Physical Properties
- Solids: Solids have a fixed shape and volume. They are rigid and do not flow easily. Examples include ice, wood, and rocks.
- Liquids: Liquids have a fixed volume but take the shape of their container. They can flow and pour. Examples include water, milk, and oil.
- Gases: Gases have neither a fixed shape nor volume. They expand to fill any container. Examples include air, helium, and carbon dioxide.

#### Section 3: Examples
- Solid Example: Ice (water in solid form).
- Liquid Example: Water.
- Gas Example: Air.

---

#### Final Filled Worksheet:
Here is how the worksheet should be completed:

| State of Matter | Definition | Example |
|-----------------|------------|---------|
| Solid | Has a definite shape and volume. | Ice, Wood, Rock |
| Liquid | Has a definite volume but takes the shape of its container. | Water, Milk, Oil |
| Gas | Has neither a definite shape nor volume; it expands to fill its container. | Air, Helium, Carbon Dioxide |

---

Explanation of Key Concepts:

1. Solids:
- Definition: Solids have a fixed shape and volume because their particles are closely packed and vibrate in place.
- Examples: Ice, wood, rock, metal, etc.

2. Liquids:
- Definition: Liquids have a fixed volume but take the shape of their container because their particles are close together but can move past each other.
- Examples: Water, milk, oil, juice, etc.

3. Gases:
- Definition: Gases have neither a fixed shape nor volume because their particles are far apart and move freely in all directions.
- Examples: Air, helium, carbon dioxide, oxygen, etc.

---

Final Answer:

The completed worksheet is as follows:

| State of Matter | Definition | Example |
|-----------------|------------|---------|
| Solid | Has a definite shape and volume. | Ice, Wood, Rock |
| Liquid | Has a definite volume but takes the shape of its container. | Water, Milk, Oil |
| Gas | Has neither a definite shape nor volume; it expands to fill its container. | Air, Helium, Carbon Dioxide |

Boxed Final Answer:
\[
\boxed{
\begin{array}{|c|c|c|}
\hline
\text{State of Matter} & \text{Definition} & \text{Example} \\
\hline
\text{Solid} & \text{Has a definite shape and volume.} & \text{Ice, Wood, Rock} \\
\hline
\text{Liquid} & \text{Has a definite volume but takes the shape of its container.} & \text{Water, Milk, Oil} \\
\hline
\text{Gas} & \text{Has neither a definite shape nor volume; it expands to fill its container.} & \text{Air, Helium, Carbon Dioxide} \\
\hline
\end{array}
}
\]