NATURAL SCIENCES UNIT 1

1. natural

2. Look at these ecosystems.
Which living things
are plants?
Which living things
are vertebrate
animals?
Which living things
are invertebrate
animals?

3. The animal, plant and fungi kingdoms
Can plants move around? Can they make their own food?
grassesBushestrees
invertebratesvertebrates
mushrooms
yeast
mould
Tree living fungus
Can animals move around? Can they make their own food?
Can fungi move around? Can they make their own food?
 MOVE AROUND  MAKE THEIR FOOD
 MOVE AROUND  MAKE THEIR FOOD
 MOVE AROUND  MAKE THEIR FOOD

4. Cells
All living things are made up of cells.
The smallest are so small you can only see them with a
microscope.
Different cells have different functions.
Most living things are made up of
many types of different cells but some, like
bacteria, have just one cell.

5. Animal kingdom: invertebrates
Molluscs Jellyfish Sponges
Echinoderms Annelids Arthropods
What do invertebrate animals have instead of a backbone?
Hard shell
Soft body
Tentacles
Little holes
Soft body
Hard skin
spikes
Soft body
segments
Head
Thorax
Abdomen
Exoskeleton
Soft body

6. Animal kingdom: vertebrates
How do animals breathe?
With LUNGS With GILLS
Both with LUNGS and GILLSMammals Birds Fish
Reptiles
Amphibians
Animals take oxygen from the air with LUNGS and from the water with GILLS.

7. Animal kingdom: vertebrates
How do animals reproduce?
Some animals are born directly from their mother: VIVIPAROUS.
Some others lay eggs: OVIPAROUS.
Mammals are viviparous. The others are oviparous.

8. Animal kingdom: vertebrates
What do animals eat?
Some animals are carnivores, some are herbivores and others are omnivores.
FOOD CHAINS
carnivores herbivores omnivores
producer
Consumer
(herbivore)
decomposer
Consumer
(carnivore)

9. Plant kingdom
How do plants reproduce?
Some plants have sexual reproduction: pollen goes from the stamen to the pistil
of the same plant or a different one.
Some plants have asexual reproduction: there are no flowers or fertilisation.
Runners Tubers Both sexual and asexual

10. Plant kingdom
Why is photosynthesis imortant?
Every animal needs oxygen to live.
Plants produce oxygen and consume carbon dioxide.

11. Plants and animals living together
Animals from the same species  POPULATION
Different populations in one place  COMMUNITY
The place they live  HABITAT
Habitat + Community = ECOSYSTEM

12. How can you look after living things?
We shouldn’t climb trees, pick up flowers, remove animals from their habitats,
make fires in the forest or touch wild animals.
We should feed birds in the winter.