Animal: Praying MantisMantis face

Eighth Grade
Ohio Department of Education
Science Academic Content Standards




Life Sciences

In the 8th grade we will also include discussions of a well-known and loved story about the mantis in which the female eats the head of the male as they are mating. How could something like this be common? This attention-getting anecdote allows a constructive discussion about the following:


2. Recognize that in sexual reproduction new combinations of traits are produced which may increase or decrease an organism's chances for survival.

Evolutionary Theory

3. Explain how variations in structure, behavior or physiology allow some organisms to enhance their reproductive success and survival in a particular environment.
4. Explain that diversity of species is developed through gradual processes over many generations (e.g., fossil record).
5. Investigate how an organism adapted to a particular environment may become extinct if the environment, as shown by the fossil record, changes.

Scientific Inquiry

Doing Scientific Inquiry

2. Describe the concepts of sample size and control and explain how these affect scientific investigations.

Scientific Ways of Knowing

Nature of Science

1. Identify the difference between description (e.g., observation and summary) and explanation (e.g., inference, prediction, significance and importance).

Ethical Practices

2. Explain why it is important to examine data objectively and not let bias affect observations.






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