Texas Essential Knowledge and Skills

Grade 7

Subchapter 112.23

Reference Science Concepts The Digital Frog 2.5
The student knows:
7.9. The relationship between structure and function in living systems.
(A) Identify the systems of the human organism and describe their functions Use all body system sections, complete with human comparisons
(B) Describe how organisms maintain stable internal conditions while living in changing external environments. Behavior: Hibernation, Respiration
7.11. The responses of organisms are caused by internal or external stimuli.
(B) Identify responses in organisms to external stimuli found in the environment such as the presence or absence of light Behavior: Hibernation, Mating

 
Reference Science Concepts The Digital Field Trip to The Wetlands The Digital Field Trip to The Rainforest The Digital Field Trip to The Desert
The student knows that:
7.5. An equilibrium of a system may change.
(B) Observe and describe the role of ecological succession in maintaining an equilibrium in an ecosystem Wetlands Mechanisms, Succession and Formation Rainforest Mechanisms, Climate  
7.8. Complex interactions occur between matter and energy.
(B) Identify that radiant energy for the Sun is transferred in chemical energy through the process of photosynthesis Photosynthesis, Organisms (plants)    
7.9. Relationship between structure and function in living systems.
(B) Describe how organisms maintain stable internal conditions while living in changing external environments. Plant & Animal Adaptations, Organisms, Migration, Web Game Plant & Animal Characteristics, Organisms, Niches, Web Game Homeostasis, Plant & Animal Adaptations, Organisms
7.10. Species can change through generations and that the instructions for traits are contained in the genetic material of the organisms.
(A) Identify that sexual reproduction results in more diverse offspring and asexual reproduction results in more uniform offspring Plant & Animal Adaptations, Organisms, Migration for examples Organisms, for examples, New Species, How Species Change What is an Adaptation?
(B) Compare traits of organisms of different species that enhance their survival and reproduction Plant & Animal Adaptations, Organisms, Migration for examples How Species Change, New Species, Organisms, Plant & Animal Characteristics Plant & Animal Adaptations, Organisms
7.11. The responses of organisms are caused by internal or external stimuli.
(B) Identify responses in organisms to external stimuli found in the environment such as the presence or absence of light Plant & Animal Adaptations, Organisms, Migration for examples How Species Change, New Species, Organisms, Plant & Animal Characteristics Plant & Animal Adaptations, Organisms
7.12. There is a relationship between organisms and the environment.
(A) Idenify components of an ecosystem Use entire CD-ROM for examples Use entire CD-ROM for examples Use entire CD-ROM for examples
(B) Observe and describe how organisms including producers, consumers and decomposers live together in an environment and use existing resources Food Chains, Web Energy, Producers, Consumers, Decomposers, Organisms, Migration, Web Game Use Organisms for examples, Dependency Types, Web Game, Niches, Productivity, Soils & Decomposition Use Organisms for examples, Build-a-Desert Game
(C) Describe how different environments support different varieties of organisms Organisms, Migration, Web Game, Plant & Animal Adaptations, Habitat Organisms, Dependency Types, Web Game, Niches Organisms, Deserts of the World
(D) Observe and describe the role of ecological succession in ecosystems Succession & Formation, Nutrient Cycles Rainforest Mechanisms (succession, productivity etc.)  
7.14 Natural events and human activity can alter Earth systems.
(C) Make inferences and draw conclusions about effects of human activity on Earth’s renewable, non-renewable and inexhaustible resources Pollution, Conservation Human Impact, Impact Screens, Rainforest Riches Human Impact, Desertification