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

2. SCIENCE: Is an ________________ Uses_______ to ______ events ______and organizes ______ Deals only with __________ Looks for _______ and __________ organized method Image from: http://www.erschools.org/Teachers/henderson/webquest/images/scientist.jpg evidence explain Collects information natural world patterns connections

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

4. Science is ______________but a ___________________ Because of new tools, techniques, & discoveries, our understanding of science is __________________. http://atmos.pknu.ac.kr/~swimm/wall/1024/EARTH.JPGhttp://www.npr.org/programs/fa/features/2005/04/flat_200.jpg not “just facts” “WAY OF KNOWING” ALWAYS CHANGING

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

6. BIOLOGY =__________________ = ________________ Study of living things Bacteria Image from: http://analyzer.depaul.edu/astrobiology/kingdoms.jpg The science of “LIFE”

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

8. 1.Made of _________ 2. _____________ 3. Based on a _____________________ 4. _______ and ____________ 5.______ & ___ ________ & _______ 6. ________ to their ____________ 7. ______________________________ 8. As a group, __________________ Characteristics of ALL LIVING THINGS cells Reproduce universal genetic code Maintain a stable internal environment Grow develop Obtain use materials energy Respond environment change over time

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

10. ALL LIVING THINGS ARE: Made of cells ____________organisms are _____________ made of only 1 cell Image from: http://www.agen.ufl.edu/~chyn/age2062/lect/lect_06/bacsiz.GIF (Ex: _________) UNICELLULAR bacteria

11. ALL LIVING THINGS ARE: Made of cells _________________ organisms _______ as _________ but as adults are _________________________ Ex: (___________ __________ ) MADE OF MANY CELLS Images from: http://www.angelbabygifts.com/ http://www.inclusive.co.uk/downloads/images/pics2/tree.gif MULTICELLULAR BEGINONE CELL a human a tree

12. ALL LIVING THINGS Reproduce ____________ ____________ _____________the ___________________ from _____________ ________________ Seen in animals and plants SEXUAL REPRODUCTION Family image from: http://babyhearing.org/Parenet2Parent/index.asp combines sperm + egg = baby genetic material 2 parents

13. ___________ ______________ makes a new organism using the ________________ from _________________ Seen in bacteria, plants, and some animals ASEXUAL REPRODUCTION Planaria animation: http://www.t3.rim.or.jp/~hylas/planaria/title.htm ALL LIVING THINGS Reproduce genetic material ONLY 1 PARENT

14. All living things share a universal genetic code Hereditary material = DNA ______________________ ________________ with instructions for one _________ is called a ________. DEOXYRIBONUCLEIC ACID GENE Image from: http://sbchem.sunysb.edu/msl/dna.gif Segment of DNA PROTEIN

15. _____________ organisms, like a bacterium, grow by ________________. Image by Riedell ALL LIVING THINGS Grow & develop INCREASING in SIZE SINGLE CELLED

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

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 DIFFERENT KINDS DIFFERENT FUNCTIONS

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

19. _________________________ what makes them ___________ is _______________ are _______________________ See end of show for image sources All cells have the SAME DNA... WHICH GENES TURNED ON or OFF different

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

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

22. ALL LIVING THINGS Take in Materials & Use Energy ___________ use energy from sunlight or chemicals to ________________ Ex: _____________ use ____________to turn _________ into _________ AUTOTROPHS http://www.inclusive.co.uk/downloads/images/pics2/tree.gif Image from: http://vilenski.org/science/safari/cellstructure/chloroplasts.html make their own food GREEN PLANTS sunlight photosynthesis glucose

23. ALL LIVING THINGS Take in Materials & Use Energy ______________ get their energy by ___________________ Ex: ________ (including you) and _________________ HETEROTROPHS Image from: http://www.epa.gov/region5/superfund/ecology/images/fishcartoon.gif consuming other organisms Animals most bacteria

24. Vocab word the combination of all the _________________ through which an organism ________ or ___________ materials as it carries out its life processes = ___________________ metabolism chemical reactions builds up breaks down

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

26. ALL LIVING THINGS Respond to their environment 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. EXTERNAL Image from: http://www.ccs.k12.in.us/chsBS/kons/kons/images/stimresp.jpg http://www.nofretete-page.de/gemischtNeu/TN_plant_grow_w.JPG

27. ALL LIVING THINGS Respond to their environment 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 http://www.estrellamountain.edu/faculty/farabee/biobk/BioBookCHEM2.html INTERNAL

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. HOMEOSTASIS

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

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

31. ALL LIVING THINGS as a group, change over time = ______________ Allows _______ of ________ in a ___________ EVOLUTION survival species changing world http://cache.eb.com/eb/image?id=63386&rendTypeId=4

32. Muscle:http://chemistry.uca.edu/faculty/isom/4320_pdf/multimedia/web_ex/web_ex1/skeletalmuscle1.jpg RBC: http://www.astrographics.com/GalleryPrints/Display/GP2120.jpg Nerve: http://www.alongnaturestrail.com/the_nervous_system.html Bone: http://ssm.hkcampus.net/~ssm-is/3.%20human_cell/bone_cell.jpg Cheek: http://faculty.stcc.edu/nash/cheek1.jpg SOURCES