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This activity explores images of planarians regenerating missing body parts, which serve as phenomena for learning about cell division and differentiation.

This activity guides the analysis of a published scientific figure from a study on how social status affects the expression of genes involved in immune system processes.

This activity analyzes a published scientific figure from a study assessing if the microbiota from a mother affects the immune systems of the developing offspring.

This activity complements the animated short video Seeing the Invisible. Students explore concepts related to relative size and scale using cards of cells and microorganisms.

This demonstration models the first step of the HIV life cycle: the binding of HIV envelope proteins to receptors on human helper T cells.

This activity explores images of chalk formations and coccolithophores, which serve as phenomena for learning about the interactions between biological and geological processes.

This activity analyzes a figure showing the atmospheric carbon dioxide concentration from 1958 to 2023.

This activity allows students to use authentic scientific data to make claims about the threat of coral bleaching for reefs around the world.

This activity explores an image of early embryonic cells, which serves as a phenomenon for learning about cell division and development.

This activity guides students through building a conceptual model of how carbon dioxide affects Earth’s climate.