Identify the simple machines in each picture and check the correct answer.

Let’s go step by step to match each simple machine with the correct picture.

We are given 6 types of simple machines:
1. lever
2. pulley
3. screw
4. wheel and axle
5. wedge
6. inclined plane

And for each, we have 3 pictures to choose from.

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1. Lever
A lever is a rigid bar that pivots on a fulcrum. It helps lift or move things with less force.

Look at the options:
- First picture: A seesaw → This is a classic lever! The pivot point is in the middle.
- Second picture: Scissors → Also a lever (two levers joined), but let’s see if there’s a better fit.
- Third picture: House? No — not a lever.

Actually, scissors *are* levers, but the seesaw is the most basic example taught in school. However, looking again — the second image under “lever” is actually scissors, which are compound levers. But wait — the first image under “lever” is labeled as “seesaw”? Actually, looking at the layout:

Wait — let me re-read the structure.

The worksheet has rows:

Row 1: lever → pictures: [seesaw], [scissors], [house]

→ Seesaw = lever ✔
Scissors = also lever (but maybe they want the simplest)
House = no

But actually, in many curricula, both seesaw and scissors are accepted as levers. However, since only one answer per row is expected, and seesaw is the purest form, I’ll pick seesaw.

BUT — hold on! Let’s check all rows carefully.

Actually, looking again — perhaps the images are misaligned in my mind. Let me think differently.

Standard examples:

- Lever: seesaw, crowbar, scissors
- Pulley: flagpole, crane, well bucket
- Screw: light bulb base, jar lid, drill bit
- Wheel and axle: bicycle, car, doorknob
- Wedge: axe, knife, doorstop
- Inclined plane: ramp, slide, stairs

Now let’s map:

Row 1: lever

Pictures:
- Left: seesaw → YES, lever
- Middle: scissors → ALSO lever (compound)
- Right: house → NO

Since seesaw is the most straightforward, and often used as the primary example, I’ll go with seesaw.

But wait — maybe the worksheet expects scissors? No, seesaw is clearer.

Actually, let’s look at Row 2.

Row 2: pulley

Pictures:
- Left: shovel? No — that’s a lever.
- Middle: balance scale? That’s a lever too.
- Right: clothesline with pulleys? YES — that’s a pulley system.

So for pulley, the rightmost image (clothesline with wheels/pulleys) is correct.

Row 3: screw

Pictures:
- Left: light bulb → the base has threads → screw ✔
- Middle: bicycle → has screws, but overall it’s wheel and axle
- Right: ladder → inclined plane

So light bulb is best for screw.

Row 4: wheel and axle

Pictures:
- Left: fan → blades rotate around axle → yes, but not typically classified as wheel and axle in elementary science; more like rotational motion.
- Middle: hammer? No — that’s a lever.
- Right: truck → has wheels and axles → YES ✔

Truck is the best example here.

Fan might be tricky — some might say yes, but truck is unambiguous.

Row 5: wedge

Pictures:
- Left: elevator? No — that’s complex machinery.
- Middle: pliers? That’s a lever.
- Right: axe head → YES, wedge ✔

Axe is a classic wedge.

Row 6: inclined plane

Pictures:
- Left: fire truck? No.
- Middle: ramp leading to truck → YES, inclined plane ✔
- Right: can opener? That’s a combination, but mainly lever and wheel.

Ramp is the clear choice.

Now back to Row 1: lever

If we assign:

- Lever: seesaw (first image)
- Pulley: clothesline (third image in row 2)
- Screw: light bulb (first image in row 3)
- Wheel and axle: truck (third image in row 4)
- Wedge: axe (third image in row 5)
- Inclined plane: ramp (middle image in row 6)

That leaves for lever: seesaw is correct.

But what about scissors? They are also levers. However, since the question says “identify which of the three pictures...”, implying one per row, and seesaw is the most direct, we’ll go with that.

Wait — let me double-check Row 4: wheel and axle

Fan: the motor turns the blades — the blades are attached to an axle, so technically it is a wheel and axle system. But in elementary science, they usually show vehicles or doorknobs.

Truck is safer.

Similarly, for pulley: the clothesline with multiple pulleys is perfect.

For screw: light bulb base has helical threads — definitely a screw.

Wedge: axe — yes.

Inclined plane: ramp — yes.

Lever: seesaw — yes.

But let’s confirm if any other could fit better.

Alternative for lever: scissors — but then what would we use for another category? Nothing else fits scissors better than lever.

Actually, in some worksheets, scissors are listed under lever, and seesaw might not even be shown — but here seesaw is shown.

I think seesaw is fine.

Final mapping:

1. lever → seesaw (first image)
2. pulley → clothesline with pulleys (third image in row 2)
3. screw → light bulb (first image in row 3)
4. wheel and axle → truck (third image in row 4)
5. wedge → axe (third image in row 5)
6. inclined plane → ramp (second image in row 6)

Now, to present the answer clearly.

The user needs to circle or select one per row.

So for each row, the correct picture position:

Row 1 (lever): first picture (seesaw)
Row 2 (pulley): third picture (clothesline)
Row 3 (screw): first picture (light bulb)
Row 4 (wheel and axle): third picture (truck)
Row 5 (wedge): third picture (axe)
Row 6 (inclined plane): second picture (ramp)

I think that’s accurate.

Let me verify once more:

- Lever: seesaw — pivots on fulcrum — yes.
- Pulley: clothesline uses pulleys to change direction of force — yes.
- Screw: light bulb screws into socket — threaded — yes.
- Wheel and axle: truck wheels turn on axles — yes.
- Wedge: axe splits wood — sharp edge — yes.
- Inclined plane: ramp reduces effort to lift — yes.

All good.

Final Answer:

1. lever → first picture (seesaw)
2. pulley → third picture (clothesline with pulleys)
3. screw → first picture (light bulb)
4. wheel and axle → third picture (truck)
5. wedge → third picture (axe)
6. inclined plane → second picture (ramp)