Indicator of directorat tes Grade 7 of Even

Given some examples of substances with a certain pH level, students classify them into acid, base and neutral in the right order.

Given the result of an experiment using indicators, students determine the pH level of a substance.

Given a table of comparison of some food products tested using natural indicators, students determine the best natural indicator.

Given some figures of ecosystem, students determine the type of the ecosystem

Given a figure of a food web, students estimate the impact caused by the loss of one component of the food web.

Given a scheme of food web, students predict the right order of minimizing the energy loss through the food web.

Given a figure of pyramid of numbers, students calculate the percentage of energy lost upward the pyramid.

Given a diagram of flow of substances in balanced ecosystem, students identify the niche of the component

Given a schema of interdependence among organism, students determine the type of the interdependence

Given a scheme of carbon cycle, students explain the flow of carbon through the cycle.

Given a list of statements, students determine the causes of the endangering of the species.

Given a list of two types of conservation places, students determine the ex situ conservation.

Given data of human population density in a certain area, students estimate the population density after 3 years if the population doubles each year.

Given a table of human demographic factors in some areas, students calculate the human population growth in a certain area.

Given a text about food crisis caused by human overpopulation, students predict the right way to overcome the food crisis.

Given some effects of human overpopulation, students describe the social effect of human overpopulation.

Given a figure of human activities which damage the environment, students predict the impacts that may disturb the balanced ecosystem.

Given a figure of ecological condition, students define the terms of biological magnification.

Given a figure of deforestation, students estimate the impact on the global condition.

Given a figure of greenhouse effect, students analyze the causes of the greenhouse effect.

Given a figure of agricultural activities, students identify the types of pollution that may occur from that activity.

Given a list of human activities that may reduce the impacts of acid rain, students determine the best effort.

Given a figure of polluted air, students predict the economical impact caused by the condition.

Given a list of wastes, students classify the example of biodegradable waste.

Given a statement about city park, students state some benefits of it in overcoming the air pollution.