Week 35, Day One
HW # 113- Chapter 10 Cornell Notes- due NEXT
Friday 6/7
Warm up
Take out your grasshopper lab. Read it over one more time.
Write 3 sentences about what you read on your warm up
page.
Warm up Response
1) x
Homework Response/Check
• Did you return your ZOO PERMISSION SLIP?
• Scientific Drawings- Grasshopper
Grasshopper Dissection
Life Science
Arthropods
Arthropods make up the largest phylum of animals in the
animal kingdom. Arthropod means “jointed foot”. All
arthropods have jointed appendages. Arthropods also
have segmented bodies and an external covering called
an exoskeleton.
Insects
Insects are one type of arthropod. Insects have three
body regions: a head, a thorax, and an abdomen.
Antennae
Compound
Eyes
Six Legs
All insects also have six legs, one or two pairs of wings,
one pair of antennae, and a pair of compound eyes.
Parts Of The Head
Use the diagram below to identify the parts of the head
on your grasshopper.
The grasshopper has 5 eyes, two compound eyes and
three simple eyes. The antenna are sensory organs
located on the head.
Mouth Parts
Use the diagram below to identify the mouth parts on
your grasshopper. As you identify each part, try and
remove it with your tweezers.
The labrum is used to hold food. The mandibles are teeth
used to chew food. The maxilla are used to chew and
taste food. The labium is used to hold food while it is
being chewed. Now use the diagram below to locate the
external structures on your grasshopper.
A grasshopper’s eardrum, or tympanum, is located below
the second pair of wings on each side of the thorax.
Locate the tympanum on your grasshopper using the
picture below. The tympanum is used for hearing.
tympanum
Like all insects, grasshoppers have six legs. The front pair
are used for walking, climbing, and holding food. The
middle legs are also used for walking and climbing. The
hind legs are used for jumping.
Grasshoppers breath through tiny holes in their abdomen
called spiracles. Try and find these tiny holes along each
side of the abdomen.
close up of
one spiracle
A female grasshopper has a longer abdomen than a male
that ends with a four pointed tip called an ovipositor.
The ovipositor is used to lay eggs. Look and the end of
your grasshopper’s abdomen and determine if it is a
male or a female.