Educational worksheet for identifying moving and still bodies of water.

Explanation:
We need to decide whether each body of water is *moving* or *still*. Let’s go one by one:

1) A river — Rivers flow from higher ground to lower ground (like into lakes or oceans). So they are moving.
→ a) moving

2) A puddle — A puddle is a small pool of water on the ground, usually after rain. It doesn’t flow; it just sits until it evaporates or soaks in. So it’s still.
→ b) still

3) A marsh — A marsh is a wetland with shallow water and plants. Water moves slowly (e.g., with tides or rainfall), but generally, marshes have slow-moving or stagnant water. However, in basic science for kids, marshes are often considered still because they’re not flowing like rivers. But wait—some marshes have gentle movement. Let’s check standard classification: In elementary science, marshes are typically described as having *still or slow-moving* water, but the question gives only two choices: “moving” or “still”. Since it’s not a fast-flowing body, and many textbooks classify marshes as still water habitats (like ponds), we’ll go with still.
But hold on — let’s double-check other items first.

4) A pond — Ponds are small, enclosed bodies of water with no current. They are definitely still.
→ b) still

5) A brook — A brook is a small stream — it flows! So it’s moving.
→ a) moving

6) A stream — Streams flow, even if small. So moving.
→ a) moving

7) A reservoir — A reservoir is a man-made lake used to store water. Water may enter and exit, but the main body is calm and not flowing like a river. So it’s considered still.
→ b) still

8) A creek — A creek is like a small river or stream — it flows. So moving.
→ a) moving

Now back to #3: A marsh. Let’s confirm with real-world logic: Marshes are wetlands where water stands or moves very slowly. In most elementary worksheets like this, marshes are grouped with *still* water (along with ponds, puddles, reservoirs), while rivers, streams, brooks, and creeks are *moving*.

Also, looking at the images (though we’re not supposed to describe them), typical illustrations show marshes as swampy, plant-filled areas with standing water — supporting “still”.

So final decisions:
1) moving
2) still
3) still
4) still
5) moving
6) moving
7) still
8) moving

Let’s list them clearly:

1) a
2) b
3) b
4) b
5) a
6) a
7) b
8) a

Final Answer:
1) a
2) b
3) b
4) b
5) a
6) a
7) b
8) a