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Lets get started!

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Lets get started!. In a group: Create an insect out of the play dough provided. Be ready to present your insect to the entire class. Include in presentation: # of legs wings Any significant characteristics . . Lesson# 2 – Insect Anatomy. What is an Insect?. - PowerPoint PPT Presentation

Lesson# 1 - External Anatomy of Insects

Lets get started!In a group:

Create an insect out of the play dough provided. Be ready to present your insect to the entire class. Include in presentation: # of legs wingsAny significant characteristics. Lesson# 2 Insect AnatomyWhat is an Insect? An insect is an animal whose body is divided into three regions with three pairs of legs on the middle region and contain an exoskeleton. They also have one pair of antennae, and one to two pairs of wings attached to the middle region if present in the adult form.

3Insects contain 3 body segments, 3 pairs of legs (6 legs), exoskeleton, pair of antennae and 1 or 2 pairs of wings attached to the thorax if present. Break it ApartLook at the insect you have been given.Cut the insect out and into parts the parts you believe it has. When you think you have your insect broken down, call Ms. Masters over to get her approval.Next, glue the parts down in your notes, leaving some space between.

Insect Anatomy

5Insects are divided into 3 different body segments. The head. The thorax and the abdomen. Every insect has these 3 body segments. If it doesnt then its not an insect. 1. HeadHead- contains one pair of antennae, two pairs of eyes, and mouthparts.

6The head contains a pair of antennae if present. The antennae are used to feel, smell and even taste. Also contains two pairs of eyes. The compound eye and the simple eye. The compound eye can have several thousand different lenses. The head also contains the mouthparts of the insect. There are several different types of mouthparts which we will talk about later in the lesson. This grasshopper had chewing mouthparts. 2. ThoraxThorax- three pairs of legs and wings if present..Prothorax - Pair of front legMesothorax Pair of middle legs and first pair of wings present.Metathorax Pair of hind legs and hind wings if present.

7The thorax is divided into 3 segments also. The prothorax, the mesothorax and the metathorax. Each of these three sections contains a pair of legs equaling 6 legs. If the insect has wings the first pair will be located on the Mesothorax and the second if present will be located on the metathorax. Because all of the wings and legs are found in the thorax this is where most of the muscle in the insect is found. 3. AbdomenAbdomen- the abdomen is composed of as many as eleven segments but never hears legs or wings.

A pair of spiracles are located on each segment of the abdomen. Spiracles are how the insect gets oxygen.

8The abdomen contains all of the organs for breathing, digestion, excretion, digestion and reproduction. The abdomen also contain spiracles which take air enters. Hissing cockroaches force air out of their spiracles to make the hissing sound. To test comprehension ask students what are the 3 body segments? Where are the legs located? Where is the antennae located? Spiracles? What segment of the thorax is the second pair of wings located?ExoskeletonInsects have an exoskeleton that is made of material called chitin. Advantages-protects the insect from enemies, keeps them from drying out, and it protects them from diseases. Disadvantage-is it is brittle and restricts movement.

9Exoskeletons gives an insect support and protection. As the insect grows, it sheds its exoskeleton and creates a new on underneath. This is called molting. Similar to a snake shedding their skin. Antennae The antennae are sensory organs for insects, they help the insect in locating food, finding remote nesting sites, and locating mates.

12 Types of Antennae


11As we discussed the head contains a pair of antennae. There are 12 different types of antennae. They are used to feel, to smell and even taste. Because the antennae is so important to insect sensory they often have antennae cleaners on their legs to help them keep it clean. Antennae TypesYou have pictures of 8 insectsCut out the picturesPaste them to your notes and label the type of antennae they haveOnce you think youve got it, call Ms. Masters over to check

Legs, Legs, LegsThere are 6 types of insect legs.Cut out the pictures and leg typesMatch the picture an leg typeOnce you think youve got it, call Ms. Masters over to checkTypes of Insect Legs

Running LegTypes of Insect Legs

Swimming LegTypes of Insect Legs

Jumping LegTypes of Insect Legs

Pollen Carrying LegTypes of Insect Legs

Digging LegTypes of Insect Legs

Grasping Leg

What legs?Cut and pasteBy the leg typeSummarize what weve learned!Insects must have:

# of common mouthparts:

# of antenna:

Number of leg types:

3 body segments, antenna, exoskeleton, 6 legs.

6 common types we discussed.

12 Types of antenna

6 types of legs. 23ReviewDraw and label the insect. Label the 3 main parts, type of antennae, and type of legs.

How do Insects eat?

Insect Mouthparts LabWhich Mouthparts?Group the insects you have been given into groups based upon their mouthparts.Piercing-Sucking Mouthparts

AphidLeafhoppersMosquitoes (Females)True BugsMites

Rasping-Sucking Mouthpart


Chewing Mouthparts


29As you can see in the photo the praying mantis has strong mandibles Sponging Mouthpart


Chewing-Lapping Mouthpart


Siphoning Mouthpart

Moths Butterflies

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Lets get started! In a group: Create an insect out of the play dough provided. Be ready to present your insect to the entire class. Include in presentation: # of legs wings Any significant characteristics.
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