SPIDERS

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SPIDERS

• Know the
• FactS

2
Insect or Arachnid

• INSECT
• 6 legs
• 3 body parts
• Legs attached to middle part of the body.
• Sort of ugly

• SPIDER
• 8 legs
• 2 body parts
• Legs attached to front part of the body
• VERY ugly!!!

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Legs, Legs, Legs!!!

• Spiders have 8, yes EIGHT long legs!!!
• The legs are attached to the front part of the
  body.

4
EYES, EYES, EYES

• Most have 8 eyes.
• Some have 6
• 4 or
• 2 eyes
• Even with all those eyes most spiders can not see
  very well.

5
Body

• 2 Parts
• Cephalothorax the front part of the body.
• Abdomen the back part of the body.

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Types of Webs

• Sheet loops like a hammock.
• Tangled- mass of threads.
• Funnel- shaped like a funnel.
• Triangle- triangle shaped.
• Orb- pattern of many circles.

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Life Cycle

• Egg
• Spiderlings
• Young Spider
• Adult

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Types or Kinds of Spiders

• Web-Spinning
• Cobweb Spiders
• Hunting Spiders
• Jumping Spiders

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Where are Spiders Found?

• Forests
• Garden
• Deserts
• Swamps
• Mountain tops
• Fields

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Usefulness of Spiders

• Eat pesky insects
• Cobwebs used for bandages
• Thin silk make crosshairs in microscopes

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all Spiders Spin Silk Using Spinnerets
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Usefulness of Silk

• Make Webs
• Travel
• Make egg sacs
• Dragline used to hunt

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Two Are Dangerous For Humans

• Black Widow
• Brown Recluse

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Eat insects and small birds

• Spiders inject poison into their prey causing the
  soft parts of the body to turn to liquid. The
  spider drinks the liquid leaving the shell of the
  prey behind.

15
What Have We Learned?

• Spiders have 8 legs, and 2 body parts.
• They drink their meals.
• They all make silk using spinnerets
• Helpful to humans
• Live almost everywhere.
• They hatch from eggs.
• Some make webs.
• All must be respected by humans.