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WHAT IS SCIENCE?

This chapter delves into the fundamental goals of science, examining its reliance on observations to make sense of phenomena. It categorizes living organisms based on essential characteristics, including cellular composition, reproduction, growth, and energy utilization. The text also highlights the importance of understanding biological processes and how they affect our lives. By exploring various scientific concepts and contemporary topics such as renewable energy and global warming, this chapter encourages critical thinking about the role of science in understanding and responding to the challenges of our world. ###

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WHAT IS SCIENCE?

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  1. WHAT IS SCIENCE? Chapter 1 Key concept: What is the goal of science?

  2. SCIENCE: • Is an ________________ • Uses_______ to ______ events • ______and organizes ______ • Deals only with __________ • Looks for _______ and __________ Image from: http://www.erschools.org/Teachers/henderson/webquest/images/scientist.jpg

  3. Scientists: _______________ that can be _______ by ___________________ http://www.darvill.clara.net/enforcemot/graphics/newton.gif

  4. Science is ______________but a ___________________ Because of new tools, techniques, & discoveries, our understanding of science is __________________. http://www.npr.org/programs/fa/features/2005/04/flat_200.jpg http://atmos.pknu.ac.kr/~swimm/wall/1024/EARTH.JPG

  5. AIDS Renewable fuels Global warming Stem Cell Research Alternative energy Endangered species Bird flu Our understanding of science is _________ in _______ intelligent ________ about a wide variety of _______ that affect our lives. Cancer Pollution Cloning Nuclear power

  6. BIOLOGY =__________________ = ________________ Bacteria Image from: http://analyzer.depaul.edu/astrobiology/kingdoms.jpg

  7. It’s Alive! Part 1 1A Part 2 1B • Click the image to play the video segment.

  8. Characteristics of ALL LIVING THINGS • Made of _________ • _____________ • Based on a _____________________ • _______ and ____________ • ______ & ___ ________ & _______ • ________ to their ____________ • ______________________________ • As a group, __________________

  9. ALL LIVING THINGS ARE: Made of cells The _____ is the ______________. http://sps.k12.ar.us/massengale/study_guides_bi.htm

  10. ALL LIVING THINGS ARE: Made of cells ____________organisms are _____________ (Ex: _________) Image from: http://www.agen.ufl.edu/~chyn/age2062/lect/lect_06/bacsiz.GIF

  11. ALL LIVING THINGS ARE: Made of cells _________________ organisms_______ as _________ but as adults are _________________________ Ex: (___________ __________ ) Images from: http://www.angelbabygifts.com/ http://www.inclusive.co.uk/downloads/images/pics2/tree.gif

  12. ALL LIVING THINGSReproduce ________________________ _____________the ___________________ from _____________ ________________ Seen in animals and plants Family image from: http://babyhearing.org/Parenet2Parent/index.asp

  13. ALL LIVING THINGSReproduce _________________________ makes a new organism using the ________________ from _________________ Seen in bacteria, plants, and some animals Planaria animation: http://www.t3.rim.or.jp/~hylas/planaria/title.htm

  14. All living things share a universal genetic code Hereditary material = DNA ______________________ _________________ with instructions for one _______ is called a ________. Image from: http://sbchem.sunysb.edu/msl/dna.gif

  15. ALL LIVING THINGS Grow & develop Image by Riedell _____________ organisms, like a bacterium, grow by ________________.

  16. ALL LIVING THINGS Grow & develop Image by Riedell Image from: http://www.bcps.org/offices/lis/models/life/images/grow.JPG Multicellular organisms grow bigger by __________________ AND _____________________.

  17. MULTICELLULAR ORGANISM don’t just contain MANY CELLS… but many _______________ of cells with _____________________ Image from: http://www.isscr.org/images/ES-cell-Fig-2.jpg

  18. The _________________ EMBRYONIC STEM CELLS into different looking ADULT cells doing different jobs = __________________________ Image from: http://www.ncu.edu.tw/~ls/graph/faculty_pictures/whole_time/SLC/SLC_lab-1.jpg

  19. _________________________ what makes them ___________ is _______________ are _______________________ See end of show for image sources

  20. It’s like having a whole library full of books, but reading only the books that are important to you. http://school.discovery.com/clipart/clip/report2.html http://www.adc.state.az.us/programs/offlibsvs.html

  21. To________________,organisms _______ a constant supply of ____________________ & ____________ ALL LIVING THINGSTake in Materials & Use Energy This sheep uses the MOLECULES and ENERGY in the food it eats to make “more sheep” http://ag.ansc.purdue.edu/sheep/ansc442/Semprojs/2003/spiderlamb/eatsheep.gif

  22. ALL LIVING THINGSTake in Materials & Use Energy ___________ use energy from sunlight or chemicals to ________________ Image from: http://vilenski.org/science/safari/cellstructure/chloroplasts.html Ex: _____________ use ____________to turn _________ into _________ http://www.inclusive.co.uk/downloads/images/pics2/tree.gif

  23. ALL LIVING THINGSTake in Materials & Use Energy ______________ get their energy by ___________________ Ex: ________ (including you) and _________________  Image from: http://www.epa.gov/region5/superfund/ecology/images/fishcartoon.gif

  24. Vocab word the combination of all the ________________ through which an organism ________ or ___________ materials as it carries out its life processes = ___________________

  25. ALL LIVING THINGSRespond to their environment A signal to which an organism responds = ___________________  Image from: http://www.travel-net.com/~andrews/images/animations/traffic.gif

  26. ALL LIVING THINGSRespond to their environment  Image from: http://www.ccs.k12.in.us/chsBS/kons/kons/images/stimresp.jpg A stimulus can be _________________ Ex: When there is enough water and ground is warm enough, seed germinates. Roots respond to gravity & grow downward.Leaves respond to sunlight & grow up. http://www.nofretete-page.de/gemischtNeu/TN_plant_grow_w.JPG

  27. ALL LIVING THINGSRespond to their environment http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM2.html A stimulus can be ____________ Ex: When the glucose level in your bloodstream becomes low, your body responds by making you feel hungry. http://www.israellycool.com/eat%20guy%20AFP.jpg

  28. VOCAB WORD A cell works to keep conditions inside the cell constant = ______________________ IF temperature, water content, nutrients, acidity change too much . . . the cell will die.

  29. HOMEOSTASIS involvesinternal __________ mechanisms If body temp drops too low, “shivering” produces heat to warm you up. If temp is too hot, “sweating” cools you down. http://www.dreamstime.com/thumb_4/1099235658Q3A4x8.jpg http://www.clipartheaven.com/clipart/seasons_&_weather/overheating_2.gif

  30. HOMEOSTASIS Drinking a BIG GULP increases the amount of water in your body http://www.me-go.net/rtw/images/biggulp.jpg Your next stop gets rid of the excess water. (OSMOREGULATION) http://pluck.typepad.com/photos/uncategorized/restroom_blog.gif

  31. ALL LIVING THINGSas a group, change over time = ______________ Allows _______ of ________ in a ___________ http://cache.eb.com/eb/image?id=63386&rendTypeId=4

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