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Chemical Bonds Learning Resource

…ranging from non-polar covalent to ionic. In the model depicted above students adjust the electronegativity of two atoms and see the effect it has on electron distribution and bond type….

Competition Learning Resource

In this activity, you will use a model to study the effect of a consumer (rabbits) on two species of producers (grasses and weeds).

Natural Selection Learning Resource

The concept of interdependence in an ecosystem and its effect on the evolution of populations is further explored through a model of a dam. Students build a dam in the

The SmartIR Gallery Blog Post

…a popup window (by the way, the enlarged image in Figure 1 shows the liquid level of a propane tank revealed by the effect of cooling due to evaporation that…