Directions: On the line before each item, write ”I” if the substance is an electric insulator or “C” if the substance is an electric conductor. 22. paper

23. glass

24. iron

25. plastic

26. gold

27. copper

28. wood

29. Rubber

30. Aluminum

What is transmission control protocol/internet protocol (tcp/ip)? software that prevents direct communication between a sending and receiving computer and is used to monitor packets for security reasons a standard that specifies the format of data as well as the rules to be followed during transmission a simple network protocol that allows the transfer of files between two computers on the internet a standard internet protocol that provides the technical foundation for the public internet as well as for large numbers of private networks