“Insects belong to a huge group of animals. This group is called arthropods. All arthropods have a hard outer coat called an exoskeleton. This exoskeleton protects the soft insides of an arthropod’s body.
An adult insect’s body is divided into three sections: a head, a thorax, and an abdomen. The insect’s head contains mouthparts, eyes, and antennae. The thorax is the middle part of an insect’s body. Three pairs of jointed legs are found on the thorax. Insects have six legs. Two pairs of wings are also attached to the thorax. The abdomen is the bottom part of an insect. It is the biggest part of the body.
Most insects undergo a change.
This change is called metamorphosis. The metamorphosis has four stages: egg, larva, pupa, and adult. Most insects lay eggs. Each egg then turns into a larva. After several molts, the larva enters the pupa stage. During this stage, it does not eat or move. When the pupa stage ends, the adult insect emerges.
There are thousands of insects in the world. More than 900,000 kinds have been found. That is more than three times as many other animal types put together. Many more new insects are discovered every year.
Depth of Knowledge Activities:
DOK 1:
Draw an insect and label its body parts, including head, thorax, abdomen, mouthparts, eyes, antennae, legs, and wings.
DOK 2:
Construct a model showing the four stages of metamorphosis.
DOK 3:
Use the information from the passage above, the internet, and other non-fiction material to research and explain the habitat, eating habits, lifespan, etc. of a specific insect. Orally share your written work.
DOK 4:
The last paragraph of the article mentions that there are three times as many insects as other animal types put together. Our school has an insect problem with ants and cockroaches. Your task is to design an eco-friendly method to get rid of these pests. Work in groups to identify solution paths, solve the problem, and report the outcome. Share results with peers.