Essential Natural Science 1Unit 3

HOME RESOURCES

RESOURCES

CONTENTS

CLOSEBACK

CONTENTS

ACTIVITY LINKS

ACTIVITY

LINKS

Essential Natural Science 1Unit 3

Contents

Living things

Common characteristics Chemical composition

Cells

HistoryOrganisationPlant and animal cellsDifferences in living things

Classification

KingdomsClassifying living thingsSpecies

Biodiversity

OriginReductionImportance

Hands on

Using a microscope to study cells.

HOME

HOME RESOURCESCONTENTS

CLOSEBACK

ACTIVITY LINKS

Essential Natural Science 1Unit 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

ACTIVITY LINKS

Animation: Eukaryotic cells

Activity: Animal and plant cells

Links

Essential Natural Science 1Unit 3

What is the origin of biodiversity?

Millions of years ago Today

HOME RESOURCESCONTENTS

CLOSEBACK

EVOLUTION

ACTIVITY LINKS

Essential Natural Science 1Unit 3

What factors can reduce biodiversity?

Dams

Mining

Industry

River crab

HOME RESOURCESCONTENTS

CLOSEBACK

Destruction of habitatsPollution of

water, soil and the atmosphere

Introduction of exotic species

Waste

Uncontrolled hunting and

fishing

FACTORS

ACTIVITY LINKS

Essential Natural Science 1Unit 3

Why is biodiversity important?

HOME RESOURCESCONTENTS

CLOSEBACK

How can it be conserved?

What are the benefits?

ACTIVITY LINKS

Essential Natural Science 1Unit 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?

ACTIVITY LINKS

Essential Natural Science 1Unit 3

• economic• scientific• ecological• cultural

Why is biodiversity important?

HOME RESOURCESCONTENTS

CLOSEBACK

Benefits of biodiversity

How can it be conserved?

ACTIVITY LINKS

Essential Natural Science 1Unit 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

ACTIVITY LINKS

Essential Natural Science 1Unit 3

What do all living things have in common?

Vital functions:

Interaction with the environment

Reproduction

HeterotrophsAutotrophs

Asexual reproduction

HOME RESOURCES

Nutrition

Sexual reproduction

CONTENTS

CLOSEBACK

ACTIVITY LINKS

Essential Natural Science 1Unit 3

Animation: Eukaryotic cells

HOME RESOURCESCONTENTS

CLOSEBACK

ACTIVITY LINKS

OPENOPEN

Essential Natural Science 1Unit 3

What are living things made up of?

carbon (C), oxygen (O), hydrogen (H), nitrogen (N)

Inorganic substances Organic substances

nucleic acids

PLANTS ANIMALS

vitamins

HOME RESOURCES

water mineral salts glucids lipids proteins

CONTENTS

CLOSEBACK

ACTIVITY LINKS

Essential Natural Science 1Unit 3

What are living things made up of?

carbon (C), oxygen (O), hydrogen (H), nitrogen (N)

Inorganic substances Organic substances

WATER

PLANTS ANIMALS

74 % 60 %

vitamins

HOME RESOURCES

nucleic acidsmineral salts glucids lipids proteins

CONTENTS

CLOSEBACK

ACTIVITY LINKS

Essential Natural Science 1Unit 3

What are living things made up of?

carbon (C), oxygen (O), hydrogen (H), nitrogen (N)

Inorganic substances Organic substances

MINERAL SALTS

PLANTS ANIMALS

3.2 %

vitamins

HOME RESOURCES

3.4 %

nucleic acidswater glucids lipids proteins

CONTENTS

CLOSEBACK

ACTIVITY LINKS

Essential Natural Science 1Unit 3

What are living things made up of?

carbon (C), oxygen (O), hydrogen (H), nitrogen (N)

Inorganic substances Organic substances

GLUCIDS

PLANTS ANIMALS

19 % 0.6 %

vitamins

HOME RESOURCES

nucleic acidswater mineral salts lipids proteins

CONTENTS

CLOSEBACK

ACTIVITY LINKS

Essential Natural Science 1Unit 3

What are living things made up of?

carbon (C), oxygen (O), hydrogen (H), nitrogen (N)

Inorganic substances Organic substances

LIPIDS

PLANTS ANIMALS

0.8 %

20 %

vitamins

HOME RESOURCES

nucleic acidswater mineral salts glucids proteins

CONTENTS

CLOSEBACK

ACTIVITY LINKS

Essential Natural Science 1Unit 3

What are living things made up of?

carbon (C), oxygen (O), hydrogen (H), nitrogen (N)

Inorganic substances Organic substances

PROTEINS

PLANTS ANIMALS

3.2 % 16 %

vitamins

HOME RESOURCES

nucleic acidswater mineral salts glucids lipids

CONTENTS

CLOSEBACK

ACTIVITY LINKS

Essential Natural Science 1Unit 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. SchleidenTheodor Schwann

slice of cork

cells50 x

3,850 x plant cell

CONTENTS

CLOSEBACK

ACTIVITY LINKS

Essential Natural Science 1Unit 3

Plant cell

Bacteria

How are cells organised?

Animals Plants

Eukaryotic cells Prokaryotic cells

Cell membrane Cytoplasm Genetic material Nucleus

Eukaryotic cells Yes Yes Yes Yes

Prokaryotic cells Yes Yes Yes No

cell membrane

Animal cellcytoplasm

genetic material

nucleus

cytoplasm

cell membrane

genetic material

SEE DIFFERENCES

HOME RESOURCESCONTENTS

CLOSEBACK

ACTIVITY LINKS

Essential Natural Science 1Unit 3

How do animal and plant cells differ?

CELL WALL(rigid)

ANIMAL CELL PLANT CELL

NUCLEUS

CHLOROPLASTS(photosynthesis)

VACUOLE

CYTOPLASM

CELL MEMBRANE

MITOCHONDRIA

HOME RESOURCESCONTENTS

CLOSEBACK

ACTIVITY LINKS

Essential Natural Science 1Unit 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 themicroscope.

HOME RESOURCESCONTENTS

CLOSEBACK

ACTIVITY LINKS

Plant cells Animal cells

Essential Natural Science 1Unit 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 themicroscope.

HOME RESOURCESCONTENTS

CLOSEBACK

ACTIVITY LINKS

Animal cells

Essential Natural Science 1Unit 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 themicroscope.

HOME RESOURCESCONTENTS

CLOSEBACK

ACTIVITY LINKS

Plant cells

GO BACK

Essential Natural Science 1Unit 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 cellmuscle cells

bone tissue

Cells work

together.

bone organ

skeletal system

muscle tissue

muscular organ

muscular system

HOME RESOURCES

Multicellular

colonies

CONTENTS

CLOSEBACK

ACTIVITY LINKS

Essential Natural Science 1Unit 3

What are the five kingdoms?

Monera Kingdom

HOME RESOURCES

Protoctist Kingdom

Fungi Kingdom

Plant Kingdom

Animal Kingdom

CLOSEBACK

CONTENTS ACTIVITY LINKS

Essential Natural Science 1Unit 3

What are the five kingdoms?

• unicellular• prokaryotes• autotrophic or heterotrophic

HOME RESOURCES

Monera Kingdom

GO BACK

CONTENTS

CLOSEBACK

ACTIVITY LINKS

Essential Natural Science 1Unit 3

What are the five kingdoms?

HOME RESOURCESCONTENTS

CLOSEBACK

• unicellular or multicellular eukaryotes• autotrophic / heterotrophic

Protoctist Kingdom

GO BACK

ACTIVITY LINKS

Essential Natural Science 1Unit 3

What are the five kingdoms?

HOME RESOURCESCONTENTS

CLOSEBACK

• unicellular or multicellular• eukaryotes• heterotrophic

Fungi Kingdom

GO BACK

ACTIVITY LINKS

Essential Natural Science 1Unit 3

What are the five kingdoms?

HOME RESOURCESCONTENTS

CLOSEBACK

• multicellular• eukaryotes• autotrophic

Plant Kingdom

GO BACK

ACTIVITY LINKS

Essential Natural Science 1Unit 3

What are the five kingdoms?

HOME RESOURCESCONTENTS

CLOSEBACK

• multicellular• eukaryotes• heterotrophic

Animal Kingdom

ACTIVITY LINKS

GO BACK

Essential Natural Science 1Unit 3

How are living things classified?

18th century

Taxonomy: the science of the classification of living thingsCarl Linnaeus

KINGDOM

FamilyPhyllum

Phyllum

Phyllum

Phyllum

Class

Order

Order

Order

Family

Genus

Genus Genus

Genus

Species

Class

HOME RESOURCESCONTENTS

CLOSEBACK

ACTIVITY LINKS

Essential Natural Science 1Unit 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?

ACTIVITY LINKS

Essential Natural Science 1Unit 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

ACTIVITY LINKS

Essential Natural Science 1Unit 3

What is a species?

Formation of hybrids

Donkey Mare

Species:A set of physically similar living things, usually with fertile descendants.

HOME RESOURCESCONTENTS

CLOSEBACK

Mule GO BACK

ACTIVITY LINKS

Essential Natural Science 1Unit 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

ACTIVITY LINKS

Essential Natural Science 1Unit 3

HOME

HOME RESOURCESCONTENTS

CLOSEBACK

Interactive activity: Animal and plant cells

ACTIVITY LINKS

OPENOPEN

Essential Natural Science 1Unit 3

Links

HOME

HOME RESOURCESCONTENTS

CLOSEBACK

ACTIVITY LINKS

GO TO WEBSITE

Biodiversity

GO TO WEBSITE

Cells