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Skills available for Virginia seventh-grade science standards

Standards are in black and IXL science skills are in dark green. Hold your mouse over the name of a skill to view a sample question. Click on the name of a skill to practice that skill.

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LS.1 The student will demonstrate an understanding of scientific and engineering practices by

LS.2 The student will investigate and understand that all living things are composed of one or more cells that support life processes, as described by the cell theory. Key ideas include

LS.3 The student will investigate and understand that there are levels of structural organization in living things. Key ideas include

LS.4 The student will investigate and understand that there are chemical processes of energy transfer which are important for life. Key ideas include

LS.5 The student will investigate and understand that biotic and abiotic factors affect an ecosystem. Key ideas include

LS.6 The student will investigate and understand that populations in a biological community interact and are interdependent. Key ideas include

LS.7 The student will investigate and understand that adaptations support an organism's survival in an ecosystem. Key ideas include

LS.8 The student will investigate and understand that ecosystems, communities, populations, and organisms are dynamic and change over time. Key ideas include

  • LS.8.a organisms respond to daily, seasonal, and long-term changes;

  • LS.8.b changes in the environment may increase or decrease population size; and

  • LS.8.c large-scale changes such as eutrophication, climate changes, and catastrophic disturbances affect ecosystems.

LS.9 The student will investigate and understand that relationships exist between ecosystem dynamics and human activity. Key ideas include

LS.10 The student will investigate and understand that organisms reproduce and transmit genetic information to new generations. Key ideas include

LS.11 The student will investigate and understand that populations of organisms can change over time. Key ideas include