SCI 200:Inquiry science level 2

Lehman

Chapters 1,6,7,8

• What’s the big idea of the chapter?• What are the major concepts of the

chapter?• What are the supporting ideas for each

major concept?• What terms should everyone know?

CH1: How science works

• Science is a way to understand the physical world

• Scientific inquiry is a complex, nonlinear process

• Science is collaborative

Points to ponder: CH 1• Scientific inquiry• Testable question• Control• Validity• Reliability• Discrete data set• Continuous data set• Peer review

Observations leading to discoveries: p.29

Chapter 6: Earth is a dynamic system

• Earth is billions of years old• The physical properties of the planet have

changed over time• Organisms living on the planet have

changed over time• The geosphere and the biosphere are

interdependent

Points to ponder: CH 6

• Relative dating• Absolute dating• Speciation (how species form)• Evolution by natural selection

Ongoing research, ongoing evolution: p.324

Chapter 7: Evolution is driven by traits

• Certain traits can be predicted statistically• Sexual reproduction results in variation• Traits are carried in the chromosomes of

cells

Ideas to consider• Cells reproduce by meiosis and by mitosis• Meiosis produces gametes• Mitosis produces somatic cells• Genes are segments of DNA• Genotype produces phenotype

Chapter 8: Proteins produce traits

• Genes code for proteins• Mutations are random• Mutations and meiosis drive evolutionary

change• Evolution is the change in gene frequency

within a population of organisms

Ideas to grapple with: CH8

• Proteins, lipids and carbohydrates are the molecules of life

• Proteins are polymers made of amino acids

• Proteins serve many functions in a living system