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Essential Natural Science 1 Unit 3 HOME RESOURCES CONTENTS CLOSEBACK CONTENTS ACTIVITYLINKS ACTIVITY LINKS.

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Presentation on theme: "Essential Natural Science 1 Unit 3 HOME RESOURCES CONTENTS CLOSEBACK CONTENTS ACTIVITYLINKS ACTIVITY LINKS."— Presentation transcript:

1 Essential Natural Science 1 Unit 3 HOME RESOURCES CONTENTS CLOSEBACK CONTENTS ACTIVITYLINKS ACTIVITY LINKS

2 Essential Natural Science 1 Unit 3 Contents Living things Common characteristics Chemical composition Cells History Organisation Plant and animal cells Differences in living things Classification Kingdoms Classifying living things Species Biodiversity Origin Reduction Importance H ands on Using a microscope to study cells. HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS

3 Essential Natural Science 1 Unit 3 HOME Resources What do all living things have in common? What are living things made up of? History of cell discovery How are cells organised? How do animal and plant cells differ? How do living things differ? How are living things classified? What are the five kingdoms? What is a species? What is the origin of biodiversity? What factors can reduce biodiversity? Hands on. Using a microscope to study cells Why is biodiversity important? HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS Animation: Eukaryotic cells Activity: Animal and plant cells Links

4 Essential Natural Science 1 Unit 3 What is the origin of biodiversity? Millions of years ago Today HOME RESOURCESCONTENTS CLOSEBACK EVOLUTION ACTIVITYLINKS

5 Essential Natural Science 1 Unit 3 What factors can reduce biodiversity? Dams Mining Industry River crab HOME RESOURCESCONTENTS CLOSEBACK Destruction of habitats Pollution of water, soil and the atmosphere Introduction of exotic species Waste Uncontrolled hunting and fishing FACTORS ACTIVITYLINKS

6 Essential Natural Science 1 Unit 3 Why is biodiversity important? HOME RESOURCESCONTENTS CLOSEBACK How can it be conserved? What are the benefits? ACTIVITYLINKS

7 Essential Natural Science 1 Unit 3 Why is biodiversity important? Iberian lynx (Lynx pardinus) HOME RESOURCESCONTENTS CLOSEBACK Creating protected areas Assisted reproduction of endangered species Protecting endangered species How can it be conserved? Doñana National Park What are the benefits? ACTIVITYLINKS

8 Essential Natural Science 1 Unit 3 economic scientific ecological cultural Why is biodiversity important? HOME RESOURCESCONTENTS CLOSEBACK Benefits of biodiversity How can it be conserved? ACTIVITYLINKS

9 Essential Natural Science 1 Unit 3 They are born and they die. They carry out three functions. They have a similar chemical composition. They are made up of cells. What do all living things have in common? HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS

10 Essential Natural Science 1 Unit 3 What do all living things have in common? Vital functions: Interaction with the environment Reproduction Heterotrophs Autotrophs Asexual reproduction HOME RESOURCES Nutrition Sexual reproduction CONTENTS CLOSEBACK ACTIVITYLINKS

11 Essential Natural Science 1 Unit 3 Animation: Eukaryotic cells HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS

12 Essential Natural Science 1 Unit 3 What are living things made up of? carbon (C), oxygen (O), hydrogen (H), nitrogen (N) Inorganic substancesOrganic substances nucleic acids PLANTSANIMALS vitamins HOME RESOURCES watermineral salts glucidslipidsproteins CONTENTS CLOSEBACK ACTIVITYLINKS

13 Essential Natural Science 1 Unit 3 What are living things made up of? carbon (C), oxygen (O), hydrogen (H), nitrogen (N) Inorganic substancesOrganic substances WATER PLANTSANIMALS 74 % 60 % vitamins HOME RESOURCES nucleic acids mineral salts glucidslipidsproteins CONTENTS CLOSEBACK ACTIVITYLINKS

14 Essential Natural Science 1 Unit 3 What are living things made up of? carbon (C), oxygen (O), hydrogen (H), nitrogen (N) Inorganic substancesOrganic substances MINERAL SALTS PLANTSANIMALS 3.2 % vitamins HOME RESOURCES 3.4 % nucleic acids water glucidslipidsproteins CONTENTS CLOSEBACK ACTIVITYLINKS

15 Essential Natural Science 1 Unit 3 What are living things made up of? carbon (C), oxygen (O), hydrogen (H), nitrogen (N) Inorganic substancesOrganic substances GLUCIDS PLANTSANIMALS 19 % 0.6 % vitamins HOME RESOURCES nucleic acids watermineral salts lipidsproteins CONTENTS CLOSEBACK ACTIVITYLINKS

16 Essential Natural Science 1 Unit 3 What are living things made up of? carbon (C), oxygen (O), hydrogen (H), nitrogen (N) Inorganic substancesOrganic substances LIPIDS PLANTSANIMALS 0.8 % 20 % vitamins HOME RESOURCES nucleic acids watermineral salts glucidsproteins CONTENTS CLOSEBACK ACTIVITYLINKS

17 Essential Natural Science 1 Unit 3 What are living things made up of? carbon (C), oxygen (O), hydrogen (H), nitrogen (N) Inorganic substancesOrganic substances PROTEINS PLANTSANIMALS 3.2 %16 % vitamins HOME RESOURCES nucleic acids watermineral salts glucidslipids CONTENTS CLOSEBACK ACTIVITYLINKS

18 Essential Natural Science 1 Unit 3 microscope History of cell discovery 1665 Robert Hooke 19th century 20th century Cells are the smallest unit of life. Cell Theory electron microscope HOME RESOURCES Matthias J. Schleiden Theodor Schwann slice of cork cells 50 x 3,850 x plant cell CONTENTS CLOSEBACK ACTIVITYLINKS

19 Essential Natural Science 1 Unit 3 Plant cell Bacteria How are cells organised? AnimalsPlants Eukaryotic cellsProkaryotic cells Cell membraneCytoplasmGenetic materialNucleus Eukaryotic cellsYes Prokaryotic cellsYes No cell membrane Animal cell cytoplasm genetic material nucleus cytoplasm cell membrane genetic material SEE DIFFERENCES HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS

20 Essential Natural Science 1 Unit 3 How do animal and plant cells differ? CELL WALL (rigid) ANIMAL CELLPLANT CELL NUCLEUS CHLOROPLASTS (photosynthesis) VACUOLE CYTOPLASM CELL MEMBRANE MITOCHONDRIA HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS

21 Essential Natural Science 1 Unit 3 Hands on. Using a microscope to study cells Preparation 1 2 3 4 5 Obtain a specimen or cells. Place on a slide. Add a drop of water to the specimen or stain the cells. Put the cover slip on. Look through the microscope. HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS Plant cellsAnimal cells

22 Essential Natural Science 1 Unit 3 Hands on. Using a microscope to study cells GO BACK Plant cellsPreparation 1 Obtain a plant specimen. 4 Place the cover slip on it. 2 Place it on a slide. 3 Add a drop of water. 5 Look through the microscope. HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS Animal cells

23 Essential Natural Science 1 Unit 3 Hands on. Using a microscope to study cells Animal cellsPreparation 4 Put the cover slip on. 3 Add a drop of water. Stain the cells with dye. 2 Spread the cells on a slide. 1 Obtain cells. 5 Look through the microscope. HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS Plant cells GO BACK

24 Essential Natural Science 1 Unit 3 How do living things differ? LIVING THINGS Unicellular one cell bacteria unicellular algae (Volvox) Grouping of cells (specific functions) cells tissues organs systems musculoskeletal system bone cell muscle cells bone tissue Cells work together. bone organ skeletal system muscle tissue muscular organ muscular system HOME RESOURCES Multicellular colonies CONTENTS CLOSEBACK ACTIVITYLINKS

25 Essential Natural Science 1 Unit 3 What are the five kingdoms? Monera Kingdom HOME RESOURCES Protoctist Kingdom Fungi Kingdom Plant Kingdom Animal Kingdom CLOSEBACK CONTENTSACTIVITYLINKS

26 Essential Natural Science 1 Unit 3 What are the five kingdoms? unicellular prokaryotes autotrophic or heterotrophic HOME RESOURCES Monera Kingdom GO BACK CONTENTS CLOSEBACK ACTIVITYLINKS

27 Essential Natural Science 1 Unit 3 What are the five kingdoms? HOME RESOURCESCONTENTS CLOSEBACK unicellular or multicellular eukaryotes autotrophic / heterotrophic Protoctist Kingdom GO BACK ACTIVITYLINKS

28 Essential Natural Science 1 Unit 3 What are the five kingdoms? HOME RESOURCESCONTENTS CLOSEBACK unicellular or multicellular eukaryotes heterotrophic Fungi Kingdom GO BACK ACTIVITYLINKS

29 Essential Natural Science 1 Unit 3 What are the five kingdoms? HOME RESOURCESCONTENTS CLOSEBACK multicellular eukaryotes autotrophic Plant Kingdom GO BACK ACTIVITYLINKS

30 Essential Natural Science 1 Unit 3 What are the five kingdoms? HOME RESOURCESCONTENTS CLOSEBACK multicellular eukaryotes heterotrophic Animal Kingdom ACTIVITYLINKS GO BACK

31 Essential Natural Science 1 Unit 3 How are living things classified? 18th century Taxonomy: the science of the classification of living things Carl Linnaeus KINGDOM Family Phyllum Class Order Family Genus Species Class HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS

32 Essential Natural Science 1 Unit 3 What is a species? Formation of hybrids Species: A set of physically similar living things, usually with fertile descendants. HOME RESOURCESCONTENTS CLOSEBACK Binomial nomenclature Sexual dimorphism What is its name? What is it? Who’s who? ACTIVITYLINKS

33 Essential Natural Science 1 Unit 3 What is a species? Common name: Red panda Scientific name: Ailurus fulgens Genus Species: A set of physically similar living things, usually with fertile descendants. HOME RESOURCESCONTENTS CLOSEBACK Binomial nomenclature GO BACK ACTIVITYLINKS

34 Essential Natural Science 1 Unit 3 What is a species? Formation of hybrids DonkeyMare Species: A set of physically similar living things, usually with fertile descendants. HOME RESOURCESCONTENTS CLOSEBACK Mule GO BACK ACTIVITYLINKS

35 Essential Natural Science 1 Unit 3 What is a species? male Species: A set of physically similar living things, usually with fertile descendants. HOME RESOURCESCONTENTS CLOSEBACK Sexual dimorphism female GO BACK ACTIVITYLINKS

36 Essential Natural Science 1 Unit 3 HOME RESOURCESCONTENTS CLOSEBACK Interactive activity: Animal and plant cells ACTIVITYLINKS

37 Essential Natural Science 1 Unit 3 Links HOME RESOURCESCONTENTS CLOSEBACK ACTIVITYLINKS GO TO WEBSITE Biodiversity GO TO WEBSITE Cells

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