1. The Grasshopper

2. Introduction
Insects are arthropods with jointed appendages, segmented bodies, and an exoskeleton composed of chitin. Insects are in the class Insecta, & are the largest and most diverse group of animals on earth.

3. Characteristics
Insects have three body regions (head, thorax, & abdomen), 3 pairs of legs attached to the thorax, a single pair of antenna attached to the head, mouthparts adapted for chewing or sucking, and two pairs of wings. Some insects may have a single pair of wings or may be wingless.

4. Adaptations
Insect legs are often adapted for digging, crawling, jumping, or swimming. Insects are mostly terrestrial and breathe air which enters small lateral openings on the body called spiracles and circulates in a system of ducts to all organs and tissues. Their chewing or sucking mouth parts are adapted  for  feeding on plant or animal materials.

6. Life Cycle
Simple Metamorphosis

7. Classification
Kingdom - Animalia Phylum - Arthropoda Class - Insecta Order - Orthoptera

8. Lab Objective
Identify & label the external & internal anatomy of a grasshopper.

9. Gloves can be provided, IF NEEDED!!
Materials
goggles
dissecting pan
forceps
dissecting scissors
hand lens
plastic bag
preserved grasshopper
Gloves can be provided, IF NEEDED!!

10. Procedure External Anatomy Internal Anatomy HEAD THORAX ABDOMEN
MUSCLES
BODY SYSTEMS

11. Anatomical Terminology
Dorsal -
Ventral -
Anterior -
Posterior -
Median -
Lateral -
Back or forward part. Abdominal or lower side. Forward or front part. Hind or rear part. Towards the middle. Side.

12. Miscellaneous
Hand sanitizer will be provided for use at the end of the dissection.
Students should wash their hands with soap and water prior to eating lunch.
Please bring any injury sustained during the dissection to the attention of an adult immediately.

13. Clean Up
DAY 1
Biological material in plastic bag with class period & name. Place on dissecting tray.
Wash tools and return to table.
Clean lab bench and table.
DAY 2
Biological material in plastic bag and trash bag.
Dissecting tray in trash.
Wash tools and return to table.
Clean lab bench and table.

14. Assessment LAB HANDOUT Pre-Lab Questions Anatomy Questions
Completed in class
Anatomy Questions
Analysis & Conclusion Questions
Distributed at the end of the dissection to be completed for homework
DIAGRAMS
External Features of the Grasshopper
Completed in class
Specialized Features of the Grasshopper Head
External Appendages of the Grasshopper

15. “Patience, young grasshoppers . . . patience!”
A good dissection takes . . .