Living Things

February 8, 2013(A Day)Agenda DSJ #25 Darwins Observations (Notes) Video: The Jeff Corwin Experience The Galapagos Islands DSR #25Chapter 7 Changes Over TimeFebruary 11, 2013(B Day)Agenda DSJ #25 Darwins Observations (Notes) Video: The Jeff Corwin Experience The Galapagos Islands DSR #25Chapter 7 Changes Over TimeDSJ #25Science Notebook 49B

Prompt: In 5 sentences or more, describe how species of birds are different. Use examples of specific types of birds and describe their differences in things like habitat (where they live) and what they eat. Describe the ways in all birds are similar.Chapter 7 Changes Over TimeLearning ObjectiveStudents will describe the observations that Darwin made on his voyage to the Galapagos islands and describe the theory of evolution that he proposed soon after.Changes Over TimeChapter 7 Changes Over Time5Darwins VoyageIn 1831, 22-year-old Charles Darwin sailed on the Beagle, from England to the Galpagos Islands to observe all of the different plants and animals there.

Changes Over Time

Chapter 7 Changes Over Time6Darwins Voyage1. True or false? Charles Darwin was not surprised by the variety of living things he saw on his voyage around the world.

Changes Over Time

Darwin was amazed by the tremendous diversity of living things that he saw.FalseChapter 7 Changes Over Time7Vocabulary2. A group of similar organisms that can mate with each other and produce fertile offspring is called a ________________.

Galapagos Giant Tortoise(Chelonoidis nigra)Chapter 7 Changes Over TimeVocabulary2. A group of similar organisms that can mate with each other and produce fertile offspring is called a __species________.

Galapagos Giant Tortoise(Chelonoidis nigra)Chapter 7 Changes Over TimeVocabulary3. A _______________ is the preserved remains or traces of an organism that lived in the past. Chapter 7 Changes Over TimeVocabulary3. A ____fossil_____ is the preserved remains or traces of an organism that lived in the past.

Chapter 7 Changes Over TimeGalapagos Organisms4.) a.b. c. d.Darwin found many similarities between Galapagos organisms and those in South America.The iguanas on the Galapagos islands had large claws that allowed them to grip slippery rocks, where they fed on seaweed.Darwin hypothesized that a small number of different plant and animal species had come to the Galapagos islands from the mainland.Tortoises on one island had dome-shaped shells. Those on another island had saddle-shaped shells.Chapter 7 Changes Over TimeDarwins Observations5.) Darwin noticed many differences among similar organisms as he traveled from one Galapagos island to the next.Chapter 7 Changes Over TimeAdaptations6.) _______ insects

7.) _______ seeds

a.b.Finches that ate seeds had strong, wide beaks.Finches that ate insects had narrow, needle-like beaks.Chapter 7 Changes Over TimeAdaptations8.) A trait that helps an organism survive and reproduce is an adaptation.Chapter 7 Changes Over TimeDarwins Conclusions9.) a.b. c. d.Darwin spent the next 20 years consulting with other scientists, gathering more information, and thinking through his ideas.Darwin hypothesized that species gradually changed over many generations.From the evidence he collected, Darwin concluded that organisms on the Galapagos islands had evolved.Darwin studied other examples of changes in living things, such as selective breeding, to help him understand how evolution might occur.Chapter 7 Changes Over TimeDarwins observationsChapter 7 Changes Over TimeScientific Theory11.)A well-tested concept that explains many observations is:

a. idea

b. evolution

c. Scientific theory

d. hypothesisChapter 7 Changes Over TimeGlue in SNB

**Please remember to use only TWO drops of glue!!**

If everyone uses only TWO drops, a lot of glue is saved over time.

49A Darwins Observations (Notes)50B The Jeff Corwin ExperienceDSR #25Science Notebook 49B (Under DSJ #25)

Prompt: In 3 sentences or more, write about the 3 most interesting things you learned from watching the video The Jeff Corwin Experience: The Galapagos Islands.Chapter 7 Changes Over Timenull247422.05