4 simple machines for grade 1 | Worsheets library - Free Printable

Let's solve this Grade 1 Science Worksheet titled *"Designs Inspired by Nature"*. The task is to match each animal part to the machine that is similar in design or function, based on biomimicry — where human inventions are inspired by nature.

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🔍 Step-by-step Analysis:

We have four animal features and four machines. We need to match them based on similar structure or function.

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#### 1. Hard shell of a turtle
- The turtle’s hard shell protects it from predators.
- This is similar to the armor on a tank, which protects soldiers.
- ✔ Match: Hard shell of a turtle → Tank

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#### 2. Hump of a camel
- A camel’s hump stores fat, helping it survive in deserts.
- While no machine stores energy like that, we look for something that stores or carries things.
- But wait — the hump is more about storage, but the shape is not directly matched.
- However, the truck (especially the one shown with a large cargo area) is designed to carry heavy loads.
- But let's check other matches first.

Wait — actually, the hump is not directly mimicked in any vehicle here. But maybe we're thinking of structure?

But looking at the options again:
- The camel’s hump is used for energy storage.
- The fuel tank of a vehicle stores fuel — so perhaps the submarine or truck has fuel tanks?
- But none of the machines clearly show that.

Alternatively, think about camels' ability to carry loads — the camel is used as a beast of burden.
- So the truck is also used to carry heavy loads.
- Therefore, camel’s hump → truck? Not exactly.

Wait — maybe the shape of the hump is not the key.

Let’s re-evaluate all pairs.

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#### 3. Tail of a fish
- Fish use their tail to swim and move forward in water.
- The submarine moves through water using propellers and fins — similar to how a fish uses its tail.
- ✔ Match: Tail of a fish → Submarine

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#### 4. Wings of a bird
- Birds fly using wings.
- The airplane has wings and flies through air.
- ✔ Match: Wings of a bird → Airplane

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Now back to the camel’s hump.

- The camel’s hump stores fat for energy.
- The truck carries cargo, not energy.
- The tank has fuel, but it's not obvious.
- The submarine has fuel and can stay underwater long time — but still not directly related.

Wait — is there a better match?

Actually, none of the machines are directly inspired by the camel’s hump in terms of design.

But let’s look at what the worksheet likely expects.

Wait — maybe we missed something.

Let’s list the options:

| Animal Feature | Possible Machine Match |
|------------------------|-------------------------|
| Hard shell of a turtle | Tank (protective armor) ✔ |
| Hump of a camel | ??? |
| Tail of a fish | Submarine (movement in water) ✔ |
| Wings of a bird | Airplane (flight) ✔ |

That leaves the camel’s hump and the truck.

The truck is a vehicle that carries goods, just like a camel carries loads.

So even though the hump is not the carrier, the camel as a whole is used for transport.

Therefore, the hump may be associated with load-bearing capacity.

Thus, the truck is used to carry heavy loads, like a camel.

So:

✔ Hump of a camel → Truck

Even if the hump itself isn’t directly copied, the function of carrying loads is shared.

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✔ Final Matching:

| Animal Feature | Machine |
|------------------------|---------------------|
| Hard shell of a turtle | Tank |
| Hump of a camel | Truck |
| Tail of a fish | Submarine |
| Wings of a bird | Airplane |

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🎯 Explanation:

This worksheet teaches biomimicry — how engineers copy nature to design machines.

- Turtle shell → Tank (protection)
- Camel hump → Truck (carrying load)
- Fish tail → Submarine (movement in water)
- Bird wings → Airplane (flight)

These are simplified analogies for young learners.

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✔ Answer:

- Hard shell of a turtle → Tank
- Hump of a camel → Truck
- Tail of a fish → Submarine
- Wings of a bird → Airplane