Pure aluminum foil distilled water na cl (table salt) gold bar (pure au) all of these may be classified as a) elements. b) compounds. c) pure substances. d) organic compound.

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?

Which is the correct order in the scientific process? ask a question ® form a hypothesis ® make an observation ask a question ® make an observation ® form a hypothesis make an observation ® form a hypothesis ® ask a question make an observation ® ask a question ® form a hypothesis

Explain why the plants cortex would serve as the best food source for animals