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Everything You Need to Know About

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									Everything You Need to
     Know About
        SPIDERS
Spiders! Scary or Nice?
             • Are you afraid of
               spiders?
             • Humans often do
               not understand
               spiders because
               they look scary.
    Characteristics of
         Spiders
• Spiders look like insects but are
  actually known as arachnids.
• Spiders have two body parts.
• Spiders have 8 legs.
• Spiders have spinnerets at the
  bottom of the abdomen for spinning
  webs.
   Parts of the Spider
Diagram
The Life Cycle of the
       Spider

  The adult spider   The spider covers
     lays eggs.      the eggs with silk.




  The baby spiders
                     Baby spiders hatch
   grow into adult
                       From the eggs.
      Spiders.
     Spiders Spin Webs
• Spiders have six fingerlike silk glands called
  spinnerets located beneath the abdomen.
• The silk comes from inside the spiders body as a
  liquid.
• As it makes contact with air the silk dries into a
  line that looks like a long strand of hair.
• The spider then weaves the silk into a web.
• The web is sticky and helps the spider catch prey.
     Spiders Catch Prey
• Spiders catch other insects with their
  web.
• Spiders can only digest liquid food.
• The spider bits the prey with their fangs
  and injects digestive enzymes.
• This causes the tissue of the prey to
  liquefy.
• The spider then drinks the insects leaving
  nothing but the insects shell.
Spiders Live Everywhere
• We can find           • Spiders live in
  spiders                 water, gardens,
  everywhere in the       houses, and in the
  world because they      ground
  have adapted          • Spiders live where
  themselves to           it is hot and cold
  living in different   • Spiders live where
  environments            it is wet and dry.
  Should we be frightened
        by spiders?
• Many people think that all spiders are
  poisonous but usually very few spider bites
  can be harmful to humans.
• Usually spiders are frightened of people
  and try to escape them.
• One of the largest spiders is the
  tarantula. It looks very scary but is not
  harmful and sometimes is kept as a pet.
       References
• www.sedl.org/scimath/pasopartners/
  spiders
• www.enchantedlearning.com/subjects
  /arachnids
• www.2.lhric.org/pocantico/spiders/sp
  iders2.htm

								
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