National Science Education Standards: Living In An Alkaline Environment WebQuest

National Science Education Standards, Grades 5-8

Grades 5-8: Physical Science-Content Standard B, Properties and Changes of Properties in Matter
  • A substance has characteristic properties, such as density, a boiling point, and solubility. One can separate a mixture into the original substances using one or more of these properties.
  • Substances react chemically in characteristic ways with other substances to form new substances (compounds) that have different characteristic properties.
Grades 5-8: Life Science-Content Standard C, Structure and Function in Living Systems
  • All organisms are composed of cells, and most organisms are single celled. Cells carry on the functions needed to sustain life, including making the materials it needs.
Grades 5-8: Life Science-Content Standard C, Regulation and Behavior
  • All organisms must be able to obtain and use resources, grow, reproduce, and maintain stable internal conditions while living in a constantly changing external environment.
  • Regulation of an organism's internal environment involves sensing the internal environment and changing physiological activities to keep conditions within the range required to survive.
Grades 5-8: Life Science-Content Standard C, Diversity and Adaptations of Organisms
  • Species acquire many of their unique characteristics through biological adaptation, which includes changes that enhance survival and reproductive success in a particular environment.
Grades 5-8: Earth And Space Science-Content Standard D, Structure of the Earth System
  • Water is a solvent, dissolving minerals and gases, which it carries to lakes and oceans.
Grades 5-8: Science In Personal And Social Perspectives-Content Standard F, Natural Hazards
  • Internal and external processes of the earth system cause natural hazards, including the toxic build-up of naturally-occurring substances, such as minerals, salts, acids, and bases.

National Science Education Standards, Grades 9-12

Grades 9-12: Physical Science-Content Standard B, Chemical Reactions
  • In acid/base reactions, hydrogen ions transfer between reacting ions, molecules, or atoms.
Grades 9-12: Life Science-Content Standard C, The Cell
  • A membrane surrounds each cell, separating it from the outside world. Cells carry out such functions as homeostasis, transport of molecules, and synthesis of new molecules.
  • Most cell functions involve chemical reactions.
  • Cell functions are regulated. This regulation allows cells to respond to their environment.
Grades 9-12: Life Science-Content Standard C, Biological Evolution
  • Evolution is the consequence of the interactions of a finite supply of resources required for life and the ensuing selection of those offspring better able to survive and leave offspring.
  • More than 3.5 billion years of evolution has filled every available niche with life forms.
Grades 9-12: Life Science-Content Standard C, Matter, Energy, and Organization in Living Systems
  • The distribution and abundance of organisms and populations in ecosystems are limited by the availability of matter and energy and the ability of the ecosystem to recycle materials.