Grade 7 Science

Scientific Inquiry, Literacy, and Numeracy
Scientific Inquiry:

  • is a thoughtful and coordinated attempt to search out, describe, explain, and predict natural phenomena;
  • progresses through a continuous process of questioning, data collection, analysis, and interpretation; and
  • requires the sharing of findings and ideas for critical review by colleagues and other scientists.
Scientific Literacy:

  • includes speaking, listening, presenting, interpreting, reading, and writing about science; and
  • also includes the ability to search for and assess the relevance and credibility of scientific information found in various print and electronic media.
Scientific Numeracy:

  • includes the ability to use mathematical operations and procedures to calculate, analyze, and present scientific data and ideas.

Structure and Function — How are organisms structured to ensure efficiency and survival?
7.2 — Many organisms, including humans, have specialized organ systems that interact with each other to maintain dynamic internal balance.

7.2.a. All organisms are composed of one or more cells; each cell carries on lifesustaining functions.
7.2.b. Multicellular organisms need specialized structures and systems to perform basic life functions.

C15. Describe the basic structures of an animal cell, including the nucleus, cytoplasm, mitochondria and cell membrane, and how they function to support life.

C16. Describe the structures of the human digestive, respiratory and circulatory systems and explain how they function to bring oxygen and nutrients to the cells and expel waste materials.

C17. Explain how the human musculoskeletal system supports the body and allows movement.

Energy in the earth’s systems — How do external and internal sources of energy affect the earth’s systems?
7.3 — Landforms are the result of the interaction of constructive and destructive forces over time.

7.3.a. Volcanic activity and the folding and faulting of rock layers during the shifting of the earth’s crust affect the formation of mountains, ridges and valleys.
7.3.b. Glaciation, weathering and erosion change the earth’s surface by moving earth materials from place to place.

C18. Describe how folded and faulted rock layers provide evidence of gradual up and down motion of the earth’s crust.

C19. Explain how glaciation, weathering and erosion create and shape valleys and floodplains.

C20. Explain how the boundaries of tectonic plates can be inferred from the location of earthquakes and volcanoes.

energy in our world?
7.1 — Energy provides the ability to do work and can exist in many forms.

7.1.a. Work is the process of making objects move through the application of force.
7.1.b. Energy can be stored in many forms and can be transformed into the energy of motion.

C12. Explain the relationship among, force, distance and work, and use the relationship (W = F x D) to calculate work done in lifting heavy objects.

C13. Explain how simple machines, such as inclined planes, pulleys and levers, are used to create mechanical advantage.

C14. Describe how different types of stored (potential) energy can be used to make objects move.

Science and Technology in Society — How do science and technology affect the quality of our lives?
7.4 — Technology allows us to improve food production and preservation, thus improving our ability to meet the nutritional needs of growing populations.

7.4.a. Various microbes compete with humans for the same sources of food.

C21. Describe how freezing, dehydration, pickling and irradiation prevent food spoilage caused by microbes.