Educational worksheet for children to learn about the states of water.

Problem Overview:

The task is to categorize the given words into three columns based on their state of matter: Liquid, Solid, and Gas. The states of matter for water are defined as follows:
- Liquid: Water in its normal, flowing form (e.g., rivers, lakes).
- Solid: Water in its frozen form (e.g., ice, snow).
- Gas: Water in its vapor or gaseous form (e.g., steam, clouds).

Solution Approach:

We will analyze each word and determine its state of matter by considering its physical properties and common usage.

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Categorization:

#### Liquid:
- River: A flowing body of water.
- Pond: A small body of still water.
- Tears: Liquid produced by the eyes.
- Lake: A large body of still water.
- Tap water: Water that flows from a faucet.
- Ocean: A vast body of water.
- Stream: A small flowing body of water.

#### Solid:
- Glaciers: Large masses of ice.
- Hail: Frozen raindrops.
- Snow: Frozen precipitation.
- Ice: Solid form of water.
- Frost: Ice crystals formed on surfaces.
- Sleet: Precipitation consisting of ice pellets.

#### Gas:
- Clouds: Visible masses of water vapor in the sky.
- Rain: Liquid precipitation, but it forms from water vapor in the atmosphere.
- Evaporation: The process of liquid water turning into vapor.
- Steam: Water in its gaseous form.
- Dew: Condensed water vapor on surfaces.
- Fog: Suspended water droplets in the air.
- Sweat: Liquid produced by the skin, but it evaporates quickly.

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Final Answer:

Here is the completed table:

| Liquid | Solid | Gas |
|------------------|------------------|------------------|
| River | Glaciers | Clouds |
| Pond | Hail | Rain |
| Tears | Snow | Evaporation |
| Lake | Ice | Steam |
| Tap water | Frost | Dew |
| Ocean | | Fog |
| Stream | | Sweat |

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Explanation:

- Liquids are substances that flow and take the shape of their container. Examples include rivers, ponds, lakes, oceans, and tap water.
- Solids have a fixed shape and volume. Examples include glaciers, hail, snow, ice, and frost.
- Gases are substances that expand to fill any container and have no fixed shape or volume. Examples include clouds, steam, and fog.

This categorization helps students understand the different states of water and how they manifest in nature.

Final Answer:
\boxed{
\begin{array}{|c|c|c|}
\hline
\textbf{Liquid} & \textbf{Solid} & \textbf{Gas} \\
\hline
\text{River} & \text{Glaciers} & \text{Clouds} \\
\text{Pond} & \text{Hail} & \text{Rain} \\
\text{Tears} & \text{Snow} & \text{Evaporation} \\
\text{Lake} & \text{Ice} & \text{Steam} \\
\text{Tap water} & \text{Frost} & \text{Dew} \\
\text{Ocean} & & \text{Fog} \\
\text{Stream} & & \text{Sweat} \\
\hline
\end{array}
}