Science Exemplars: A Companion to Graphic Organisers Resource Book

Explore science exemplars covering topics such as water treatment, plant reproduction, titration, digestion stages, organism organisation, scientific method, alimentary canal, microscopic study of plant cells, chemistry concepts, growing bacteria, and oxygen gas production. These exemplars provide practical guidance and insights to enhance science education and understanding.

• Science Exemplars
• Graphic Organisers
• Water Treatment
• Plant Reproduction
• Titration

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1. Graphic Organisers Teachers exemplars Science These science exemplars are a companion to the Graphic Organisers resource book available at www.slss.ie

2. Water treatment clean water FLOURIDATION CHLORINATION FILTERING SETTLING SCREENING dirty water

3. Plant reproduction germination dormancy dispersal Seed & fruit formation fertilisation pollination

4. Titration preparing burette remove funnel check at eye level using white sheet of paper bring meniscus to line using a dropper fill tap at bottom of burette re-fill with solution using funnel rinse with solution to be used rinse through funnel with deionised water clamp burette vertically with funnel in place

5. Stages in digestion egestion assimilation absorption digestion ingestion

6. Organisation levels organism systems organs tissues cells molecules

7. Scientific method present analyse carry out devise experiment health & safety observe problem Science

8. Alimentary Canal oesophagus mouth stomach caecum ileum duodenum colon rectum anus Biology food passing through the digestive system

9. Microscopic study of plant cells what to do, and why Science, Biology

10. Chemistry Quark model radiation alpha and beta sub-atomic particles in nucleus atom alchemy

11. Growing bacteria on agar plates Incubate Invert Replace lid, seal, label Streak plate Lift lid slightly Source of bacteria

12. Making Oxygen Gas To do test To release O2 To collect gas To make O2 Use H2O2 and MnO2 Source of O2 Catalyst

13. Photosynthesis sunlight carbon dioxide water photosynthesis

14. Rates of reaction particle size nature of reactants temperature catatyst Rate of reaction

15. L.C. Physics magnetic field force

16. Preparation of oxygen gas H2O2 hydrogen peroxide MnO2 manganese dioxide beehive shelf trough of water collecting jars tap funnel tubing oxygen gas

17. 7 characteristics of living things movement feedingreproduction sensitivity respiration growth life

18. Excretion in the Kidney salts water UREA hormones H2 urine

19. 7 characteristics of living things reproduction movement nutrition all these activities create toxic waste which must be released If it has all these its alive!! excretion growth respiration response

20. Organic chemistry carboxylic acids O alkanes C-C -ane methane heating fuel aldehydes =O -anal ethanol + H2SO4 alkynes C C -yne H2O + CaC2 cutting, welding C OH -anoic acid ethanoic acid vinegar perfumes, fruit organic organic compounds compounds flavourings solvents plastics aluminium oxide and alcohol making soap beers, spirits propan-2-ol + -anoate -anone ethanol Al2O3 + C2H5OH C C-C-C -anol -ene O = O C=C -OH R esters ketones alcohols alkenes

21. Systems & organs of the human excretory digestive some human body systems respiratory circulatory

22. Human Nutrition carbohydrate fats proteins CHO oils, butter energy storage brown paper test CHON eggs, meat growth & repair CHO bread, pasta energy NaOH & CuSO4 amino acids glucose = Benedict s test starch = iodine test deficiency = lack of energy molecules = 3 fatty acids:1 glycerol Food & nutrition def = stunted growth water deficiency = constipation deficiency = scurvy deficiency = anaemia aids peristalsis connective tissue in citrus fruits haemoglobin bran, fruit red meat cellulose eg VIT C eg Fe fibre vitamins minerals

23. Atomic Structure Sub-atomic particles Periodic table B hr Diagram atomic no. mass no. shells Electronic configuration neutron electron group atoms BAT STAIRCASE proton valency structure Nuclear formula Atomic Structure charges molecules empty space ions valency shells Neutron = neutral covalent nucleus Electron = negative ionic Proton = positive Bonding Location Charges

24. Ecology key terms environmental factors animals plants temperature qualitative quantitative: light % cover % frequency wind pie charts bar charts Ecology Field work results quadrat thermometer light meter anemometer pooter pitfall trap line transect beating tray tools tools tools

25. Radioactivity... nuclear reactor uses type medical imaging fuel moderator fuel rods alpha medical therapy beta gamma carbon dating food irradiation heat exchanger radioactivity burns clothing shielding use tongs leukaemia genetic defects cataracts death don t eat or drink don t smoke precautions hazards

26. What we look for on the microscope light clips fine lens stage objective nosepiece focus wheel coarse light microscope

27. What we need to remember about light sun, star light mirror fine lens eye reflection microscope transparent refraction eclipse 7 colours periscope light

28. Human Hormones oestrogen LH oxytocin FSH adrenaline thyroxine progesterone insulin growth hormone prolactin endocrine system

29. What we need to remember about light sun, star light mirror fine lens eye reflection microscope transparent refraction eclipse 7 colours periscope light

30. Separation techniques Criteria Topic Apparatus Sample Draw the diagram State result What ? substances Insoluble solid from liquid Funnel, filter paper, beaker, flask Sand from water Filtration Soluble solid from liquid Bunsen , tripod, gauze, beaker, evaporating dish Salt from water Evaporation Distillation Soluble solid from liquid; two liquids of different BP Condenser, bunsen, clamps, flask, beaker, stand Dye from wine, coke Dyes with different solubilities from liquid Chromato- graphy paper, jar, ink, dropper, pencil Dyes from black marker Chromatography

31. Cross Classification blood cells criteria cells source function no/mm3 shape name red white platelet

32. Cross Classification blood vessels criteria vessels function pressure wall valves lumen artery vein capillary

33. Cell structures animal & plant cell membrane cytoplasm nucleus nuclear membrane nuclear pores nucleolus DNA mitochondrion ribosomes chloroplast cell wall vacuole centriole ANIMAL CELL PLANT CELL

34. Comparing forms of energy Dangerous waste No waste Cheap Renewable Large supply WIND NUCLEAR

35. Bonding Shared Given & taken No charged particles Electrons involved Charged particles = ions Centre of periodic table Holds particles together LHS&RHS of periodic table Molecules Liquids & gases COVALENT IONIC Crystals, solids

36. gases: oxygen v. carbon dioxide use H2O2 + MnO2 to make use HCl + CaCO3 to make relights a glowing splint turns limewater milky transparent needed by all living things for respiration needed by plants for photosynthesis found in air released by plants in photosynthesis released by all living things in respiration CARBON DIOXIDE GAS OXYGEN GAS

37. Endocrine system: male v. female adrenals adrenaline pituitary hormones: growth, lutenising, antidiuretic, follicle stimulating ovaries oestrogen progesterone testes testosterone thyroid thyroxine pituitary oxytocin parathyroids parathormone pancreas insulin MALE FEMALE

38. RNA v. DNA single strand found in nucleus double strand ribose deoxyribose uracil adenine cytosine guanine thymine found in cytoplasm and in ribsosome does not leave nucleus DNA RNA

39. mitosis v. meiosis reduction division 2 daughter cells cell division two cycles of division single cycle of division require energy 4 daughter cells identical daughter cells non-identical daughter cells MEIOSIS MITOSIS

40. Photosynthesis v. Respiration only in plant cells part of the cycles of nature chloroplast all living things take place in cells CO2 in, O2 out mitochondrion takes place in stages O2 in CO2 out makes glucose breaks down glucose RESPIRATION PHOTOSYNTHESIS

41. Control systems: nervous v. endocrine response usually slower rapid response longer-lasting response short lived response react to internal and external stimuli chemical messengers in blood electrical impulse via neurons messages sent from one part of body to another localised, separate glands CNS + PNS connected co-ordination male & female same NERVOUS SYSTEM male and females differ ENDOCRINE SYSTEM

42. renewable v. non-renewable energy forever both need to be managed carefully will run out wind sun wave bio-fuels fossil fuels oil, coal, peat, gas both cost money to deliver NON- RENEWABLE RENEWABLE

43. 1st year science pre-learning electricity electronics Chemistry atoms gases air fuels Physics food light plants animals Biology

44. Sub-atomic particles Positively charged, In the nucleus, similar mass, the sum of these is the mass no. Not charged, Determines atomic no. No. can vary (isoptope) Neutron All in the atom Number is constant Proton Charged Negatively charged, Almost no mass!! Can be removed or added, In constant motion in orbits Electron

45. Comparing organs of excretion [other function: breathing] water as vapour [other functions: protective, sensory, heat regulation] carbon dioxide skin excess water 2 1 lungs salts diffusion urea water as liquid [other functions: osmoregulation] active transport kidney

46. Separation techniques Equipment Equipment evaporation sex-linked disease What happens What happens What happens What happens distillation chromatography Equipment Equipment

47. Le Chateliers Principle N2+ 3 H2 2 NH3 H = 92kJ mol-1 decrease increase pressure temp increase addn decrease addn catalyst ? removal removal

48. Trends in the Periodic Table Groups increase going down groups adding new shell screening effect Groups increase going down adding new shell increased screening effect Periods decreases along periods no new shell larger nucleus, stronger hold Periods decrease along periods no new shell larger nucleus, stronger hold Groups Decreases down groups adding new shell i.e. further away increases screening effect energy values atomic radius Groups increase down Group 1 1 e- on outer shell, getting further from nucleus ionisation energy reactivity Groups Periods Decreasing atomic radius no screening effect no new shell, larger nucleus Increases along periods increase going up Group 1, only need 1 e- atomic radius decreases, nucleus has stronger hold

49. mass no. & relative atomic no. atomic structure elements, atoms, symbols periodic table groups & periods metals v. non-metals Junior Cycle Science

50. what is it? uses properties Light experiments laws Junior Cycle Science:

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