Spiders, like all creatures, depend on all aspects of their environment for survival. Plants provide protection, home-sites, and anchorage points for webs. They use silk for homes, to encase their eggs, and for traps to catch prey. Their webs are specially constructed to send vibrations to the waiting spider when a tasty meal has been entrapped. In turn, spiders themselves become tasty meals for other creatures like birds or praying mantises. They are cannibalistic, meaning they will eat other spiders. The number of spiders in any given area may reach one million per hectare or acre, and help control insects that could harm or destroy crops.

Summary. 1 CDROM includes: Stated Concepts, Expectations, Outcomes; Original Activities (10-15); Image Bank (40 images for use with SmartBoards and templates) Introduction Spider enemies Where do spiders live? Spiders help humans How do spiders catch prey? Summary. 1 CDROM includes: Stated Concepts, Expectations, Outcomes;Original Activities (10-15); Image Bank (40 images for use with SmartBoardsand templates)