Fifteen terms pertaining to speciation, extinction, and gene flow are to be matched to their definitions. This simple, easy-to-read worksheet can be used as a pop quiz for your biology learners when studying natural selection principles...

For this using synonyms and explanations as context clues, 6th graders read newspaper articles, then answer five comprehension questions using context clues.

Adaptation or acclimation? Young ecologists determine which is being exemplified in twenty questions. When teaching about adaptations, make sure to talk about acclimation, a short-term learned response to a change in the surroundings....