Grade 2 science worksheet on insect classification with descriptive words and animal images.

Solution to the Worksheet: Animal Classification – Insects

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#### Part 1: Circle the words that describe insects.

We are given a table of characteristics, and we need to identify which ones apply to insects.

Let’s go through each one:

| Characteristic | Is it true for insects? | Explanation |
|----------------|------------------------|-----------|
| has beaks or bills | ✘ No | Beaks or bills are features of birds, not insects. |
| invertebrates | ✔ Yes | Insects do not have backbones — they are invertebrates. |
| has three main body segments | ✔ Yes | Insects have head, thorax, and abdomen. |
| has three pair of jointed legs | ✔ Yes | All insects have six legs (3 pairs). |
| often with wings | ✔ Yes | Many insects have wings (e.g., bees, butterflies), though not all. |
| their skin is smooth and slimy | ✘ No | This describes amphibians like frogs, not insects. Insects have a hard exoskeleton. |
| produce milk for babies | ✘ No | This is a mammal trait. Insects don’t produce milk. |
| has two antennae | ✔ Yes | Most insects have two antennae used for sensing. |
| has exoskeleton | ✔ Yes | Insects have a hard outer shell called an exoskeleton made of chitin. |

✔ Correct words to circle:
- invertebrates
- has three main body segments
- has three pair of jointed legs
- often with wings
- has two antennae
- has exoskeleton

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#### Part 2: Circle the animals that are insects.

Now let’s examine each animal shown:

1. Ladybug → ✔ Insect
- Has 6 legs, 3 body parts, wings, antennae, exoskeleton.

2. Ray (Stingray) → ✘ Not an insect
- It's a fish (marine animal), has fins, gills, no legs.

3. Grasshopper → ✔ Insect
- Has 6 legs, wings, antennae, exoskeleton.

4. Frog → ✘ Not an insect
- It's an amphibian. Has smooth, moist skin, lays eggs in water.

5. Bee → ✔ Insect
- Has 6 legs, wings, antennae, exoskeleton.

6. Butterfly → ✔ Insect
- Has 6 legs, wings, antennae, exoskeleton.

✔ Animals to circle (insects):
- Ladybug
- Grasshopper
- Bee
- Butterfly

✘ Do NOT circle:
- Ray
- Frog

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✔ Final Answers:

#### Words describing insects (circle these):
- invertebrates
- has three main body segments
- has three pair of jointed legs
- often with wings
- has two antennae
- has exoskeleton

#### Animals that are insects (circle these):
- Ladybug
- Grasshopper
- Bee
- Butterfly

> 📝 Note: The ray and frog are not insects — the ray is a fish, and the frog is an amphibian.

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This worksheet helps students understand key features of insects and practice classification based on physical traits.