1 / 36

Silent And Solo Do Now

Silent And Solo Do Now. You have 5 minutes to create a timeline It should include the following events: Formation of the Earth When bacteria (1 st life form) appeared on Earth Permian Extinction Cretaceous Extinction Take out your “Relative dating lab” and homework and PUT ON TABLE.

chickoa
Télécharger la présentation

Silent And Solo Do Now

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Silent And Solo Do Now • You have 5 minutes to create a timeline • It should include the following events: • Formation of the Earth • When bacteria (1st life form) appeared on Earth • Permian Extinction • Cretaceous Extinction • Take out your “Relative dating lab” and homework and PUT ON TABLE

  2. Homework: • Complete questions for “Virtual fossil hunt” • Complete questions 1-5 on page 15 of LOT.

  3. Put away everything except your timeline.

  4. Now exchange papers with your face partner.

  5. When was the Earth formed? • When was Pangea formed? • These are two separate events. The Earth was formed, and later in history the continents moved together. The Earth was not created with the continents together.

  6. Virtual fossil hunt • Everyone take their lab and a pencil and move to the sides of the room. • Count off from 1-7. • Go to the appropriate table.

  7. Virtual Fossil Hunt • Day 1: Take 4 fossils out of your envelop. Fill in table 1. • Day 2: Take another 4 fossils out of your envelop. Fill in table 1. • Day 3: Take a gallery tour of other tables. Look at their fossil pieces. Fill in table 1.

  8. Do Now • Pick up all papers from front cart • Hand in Questions 1-5 from LOT book and “Virtual Fossil hunt”. • Read and complete “Theory of Evolution through Natural Selection” • Homework: Read Ch1 section 2 LOT; complete study guide A (both sides)

  9. Cell phone technology • Look at the pictures of cell phones at your table. • Silent and solo, write down answers • What is different about the cell phones? • Why did cell phones change?

  10. Pair, Share • Discuss your answers with the students at your table. • How did technology allow cell phones to change? • When a new cell phone is introduced, do older versions vanish? Or are they sold less often?

  11. Brainstorm: What is Evolution? • Evolution is the process through which species change over time. • Organisms change genetically, and this change is passed on to new generations.

  12. Where did the theory come from? • Jean Lamarck suggested that an organism can acquire a new trait during its lifetime, and pass on that trait to its offspring. • Giraffes are an example • Couldn’t prove his theory.

  13. Charles Darwin’s journey • Charles Darwin was a naturalist • Had experience with artificial selection • Humans select traits in organisms and breed organisms that have those traits • example: different varieties of dogs • Can you think of another example? • Traveled for 5 years on the HMS Beagle

  14. Darwin’s journey • How could similar species inhabit different habitats?

  15. Darwin’s journey • How could different, yet related, species inhabit different habitats within the same area?

  16. Darwin’s journey • How could fossils of extinct animals be similar to living species?

  17. Darwin’s finches

  18. Do Now • Hand in homework (and fossil lab if you’ve forgotten) • Get papers from front cart • Complete “Darwin’s Voyage of Discovery”. • Homework: Complete questions 2,3,5 and 6 on “Bird Beak Adaptation” Lab.

  19. Theory of Natural Selection • What do you think natural selection is? • Members of a species that are best suited to their environment survive and reproduce at a higher rate than other members of the species.

  20. What does this mean? • The strongest do not always survive. • The strongest do not always reproduce. • Those species with traits that are best suited to their environment will be those that survive and pass on those traits to their offspring. • Brown bear vs. white bear in the woods

  21. Do Now • Put“Bird Adaptation” lab in front of you • Answer these questions on a piece of paper: • What was the first multicellular species? • Which organism evolved first on land? • Why do we use absolute and relative dating together to create a fossil record? • Homework: finish “Bird” lab

  22. Natural Selection based on four principles • Overproduction • Variation • Adaptation • Selection

  23. Overproduction • When an organism reproduces, it makes more offspring than the environment can provide food and space for. • Only some will survive to adulthood • Only a few will reproduce successfully

  24. Variation • Natural differences, or traits, within a species. Can you name any? • Color, size, etc. • Variations are caused by changes in the genetic material, or mutations • These variations get passed on to the next generation.

  25. Adaptation • An inherited trait (variation) that gives an organism an advantage in its environment • Makes the organism better able to survive than other members of species

  26. Selection • Organisms with a particular adaptation are more likely to survive long enough to reproduce • This adaptation becomes more common in future generations • The variation has been selected for this environment by nature • The organism is evolving through natural selection

  27. Fan Pick • #1 fans the cards • #2 picks a card and reads to #3 • #3 answers • If #3 needs help, ask #4. • Everyone at table should agree • Write answers on paper • Need to tell what the animal is, and why the adaptation helps them survive.

  28. Do Now • Put “Bird Adaptation Lab” in center of table. • Take “Challenge and Extension” and study guide from cart. • Complete “Challenge and Extension” • Person #1 will collect all the labs for the table and put them in the In Bin.

  29. Speciation • Evolution of new species from an existing species • All the different finches on the Galapagos Islands probably evolved from one species of finch from South America.

  30. Isolation • In order for new species to evolve, some members must be separated from the rest of the species. • Geographic • Behavioral • reproduction

  31. Working in your group, what do you think it means to be isolated geographically? • How about reproductively?

  32. Geographic isolation • Members of a species become separated from the rest by some geographic barrier, like water or mountains. • The isolated organisms begin to show traits that enable them to survive in their new environment.

  33. Reproductive isolation • Members of a species reproduce at different times of the year, use different mating calls, or mate in different locations. • Soon these become two different species that can’t breed together.

  34. Work with your group • Come up with one different example of • Geographic isolation • Behavioral isolation • Reproductive isolation • Write it down, and be ready to share it with the class

More Related