Grade 2 Science worksheet on food chains on land, featuring images of a wolf, worm, apple, and chicken to illustrate energy flow in an ecosystem.

Let’s think about how energy flows in a food chain on land.

In any food chain, energy starts with something that makes its own food — usually a plant. Then animals eat the plant, and other animals eat those animals. So we need to put the pictures in order from what gets eaten first to what eats last.

We have:
- Apple (a plant — it makes its own food using sunlight)
- Worm (eats dead plants or soil stuff — so it might eat apple bits)
- Chicken (eats worms or seeds — so it can eat worms)
- Wolf (eats chickens or other small animals — top predator here)

So let’s build the chain:

1. Apple → This is the start. It’s the producer.
2. Worm → Eats the apple (or decaying apple matter).
3. Chicken → Eats the worm.
4. Wolf → Eats the chicken.

That means the flow of energy goes:
Apple → Worm → Chicken → Wolf

Now, looking at the boxes with arrows:

Top left box → Top right box
↓
Bottom right box ← Bottom left box

Wait — let’s trace the arrow direction carefully.

The arrows show the direction of energy flow.

From the diagram:

- Arrow from top-left to top-right → so top-left feeds into top-right
- Arrow from top-right down to bottom-right → so top-right feeds into bottom-right
- Arrow from bottom-right to bottom-left → so bottom-right feeds into bottom-left? Wait no — actually, the arrow points FROM bottom-right TO bottom-left? Let me check again.

Actually, looking at the layout:

There are four boxes arranged like this:

[Box A] → [Box B]
↓
[Box D] ← [Box C]

So energy flows:
A → B → C → D

Because:
- A to B (right arrow)
- B to C (down arrow)
- C to D (left arrow)

So the chain should be placed as:

Box A = Apple (start)
Box B = Worm (eats apple)
Box C = Chicken (eats worm)
Box D = Wolf (eats chicken)

Yes! That matches the energy flow.

Now, the question: “Is the worm a predator or prey?”

In this chain:
- The worm eats the apple → so it’s a consumer, but not really a predator (predators hunt live animals).
- But then the chicken eats the worm → so the worm is being eaten → that makes it prey.

Even though the worm isn’t hunted like an animal, in food chain terms, if something eats it, it’s considered prey.

So final answer for the question: prey

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Final Answer:
Place the pictures in this order:
Top left: Apple
Top right: Worm
Bottom right: Chicken
Bottom left: Wolf

The worm is prey.