unit 1 chapter 2–insects and spiders. pp. 26-27 do you know? what are two characteristics of an...
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UNIT 1
Chapter 2–Insects and Spiders
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Chapter 2 – Insects and Spiders pp. 26-27
Do you know?
• What are two characteristics of an arthropod?
• What are the three body sections of an insect?
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Words To Know
one of the group of invertebrates with jointed legs, separate body
sections, and an exoskeleton
arthropod
Chapter 2 – Insects and Spiders p. 26
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Words To Know
a hard outside covering
exoskeleton
Chapter 2 – Insects and Spiders p. 26
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Words To Know
to shed an exoskeleton
molt
Chapter 2 – Insects and Spiders p. 26
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Words To Know
the section of an insect with two antennae
head
Chapter 2 – Insects and Spiders p. 27
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Words To Know
the middle section of an insect’s body
thorax
Chapter 2 – Insects and Spiders p. 27
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Words To Know
the last section of an insect’s body
abdomen
Chapter 2 – Insects and Spiders p. 27
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Chapter 2 – Insects and Spiders p. 27
1. What is an exoskeleton?
a hard outside covering
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Chapter 2 – Insects and Spiders p. 27
2. What are the three body sections of an insect?
the head, thorax, and abdomen
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Chapter 2 – Insects and Spiders pp. 28-29
Do you know?
• What is it called when one thing appears to be something it is not?
• How can speed help an insect?
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Chapter 2 – Insects and Spiders pp. 30-31
Do you know?
• What two kinds of mouthparts can insects have?
• How can a mosquito spread diseases?
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Chapter 2 – Insects and Spiders p. 31
1. What are some forms of protection for insects?
an exoskeleton, camouflage, speed, biting, stinging
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Chapter 2 – Insects and Spiders p. 31
2. What are the two main kinds of mouthparts for insects?
chewing and sucking
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Chapter 2 – Insects and Spiders pp. 36-37
Do you know?
• What are the stages of incomplete metamorphosis?
• What are the stages of complete metamorphosis?
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Words To Know
a change in form
metamorphosis
Chapter 2 – Insects and Spiders p. 36
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Words To Know
the first stage of metamorphosis
egg
Chapter 2 – Insects and Spiders p. 36
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Words To Know
an immature insect
nymph
Chapter 2 – Insects and Spiders p. 36
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Words To Know
the final stage of metamorphosis where the insect has fully
developed
adult
Chapter 2 – Insects and Spiders p. 36
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Words To Know
the wormlike stage of an insect
larva
Chapter 2 – Insects and Spiders p. 37
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Words To Know
the stage in complete metamorphosis between larva
and adult
pupa
Chapter 2 – Insects and Spiders p. 37
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Chapter 2 – Insects and Spiders p. 37
1. What are the stages of incomplete metamorphosis?
egg, nymph, and adult
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Chapter 2 – Insects and Spiders p. 37
2. What are the stages of complete metamorphosis?
egg, larva, pupa, and adult
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Chapter 2 – Insects and Spiders pp. 38-39
Do you know?
• What are the three jobs of honeybees?• How do honeybees tell each other where
to find pollen?
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Words To Know
a knowledge or skill that an animal is born with
instinct
Chapter 2 – Insects and Spiders p. 38
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Words To Know
a group of insects that live together
colony
Chapter 2 – Insects and Spiders p. 38
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Chapter 2 – Insects and Spiders pp. 40-41
Do you know?
• What are some tasks that worker ants do?• What is unusual about dairy ants?
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Chapter 2 – Insects and Spiders p. 41
1. What is a colony?
a group of insects that live together
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Chapter 2 – Insects and Spiders p. 41
2. How does living together help social insects?
They could not survive alone but work together to meet their needs.
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Chapter 2 – Insects and Spiders p. 41
3. How do honeybees tell other bees in the hive where flowers are located?
They do a dance.
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Chapter 2 – Insects and Spiders pp. 44-45
Do you know?
• How are spiders and insects different?• How do spiders use spinnerets to help
them get food?
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Chapter 2 – Insects and Spiders pp. 46-47
Do you know?
• How, other than spinning webs, can spiders catch food?
• What two spiders can be poisonous to humans?
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Chapter 2 – Insects and Spiders p. 47
1. How are spiders different from insects?
Spiders have four pairs of legs instead of three, two body parts instead of three, no wings, and no antennae.
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Chapter 2 – Insects and Spiders p. 47
2. What are some ways spiders can catch food?
by using a web, jumping and grabbing, fishing, hunting, and poisoning
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Key Ideas
• Arthropods have jointed legs, separate body sections, and an exoskeleton.
• Insects and spiders are two common kinds of arthropods.
• Insects have three body sections, three pairs of legs, and antennae.
Chapter 2 – Insects and Spiders p. 48
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Key Ideas
• God gave each insect what it needs to survive.
• Insects go through either incomplete or complete metamorphosis to become adults.
Chapter 2 – Insects and Spiders p. 48
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Key Ideas
• Some insects live together in a colony and share jobs to survive.
• Spiders have two body sections and four pairs of legs.
• God gave spiders instincts to catch food in different ways.
Chapter 2 – Insects and Spiders p. 48