what is an ecosystem
what is a habitat
no life without plants - why do ecosystems need plants
life from soil
scavengers
termites and the soil
a place where certain types of plants grow
takes thousands of years to form
essential for life
a habitat and its plants and animals
feed on leftovers
keeps soil healthy
mixture of plant and animal matter
fungi
they recycle fallen trees back into the soil
natures recyclers
digestion in animals
describe the process
digestion in animals
describe the process
explain the following term
"there would be no life without plants" (5)
what is rotten plants and animals?
termites grow a ………. to help digest their food
have what to help them break down plant material
everything in a natural ecosystem is
mushrooms and moulds are
the termites make their own ……. to build the mound by mixing soil with their saliva
explain the term "habitat" (2)
name three different animals that make use of a termite mound and what they use it for
name the various types of life forms in the soil and explain their function in terms of life in the soil (5)
what is digestion
saliva
teeth - coated in enamel
hardest part of your body
chew your food to break it up into smaller pieces
how would you tell the difference between spotted and brown hyenas if you could not see them? explain (5)
why is chewing gum not a good practice for the body?(4)
why can snakes eat animals much bigger than themselves?
Name 5 types of joints
Characteristics of fibrous joints
Characteristics of Ball and socket joints
Characteristics of Hinge joints
Characteristics of Gliding joints
Characteristics of Pivot joints
ball and socket joints are found where
name an immovable joint
ribs are part of your body known as
name 3 important functions of the skeleton
why are joints necessary
name the 5 senses
in order for us to have a sense we need
describe how the eyes work
skin sensors
smell sensors
explain how we hear sounds
outside flap which collects the sound
directs the sound onto the eardrum which vibrates
a thin rounded membrane which vibrates and transmits the sound to the middle ear
receives vibrations from the eardrum and transmits them to the inner ear
these are fluid filled and vital to our sense of balance
contains nerve cells which transmit the sound to the auditory nerve
carries sound to the part of the brain which controls sound
connects the middle ear to the back of the nose. it is used to equalize pressure
all sounds are caused by
what are sensitive and help us to see at night
what part of the ear provides information about the movement of the head
parts of the ear - Cochlea
parts of ear - Ear drum
parts of ear - Hammer
parts of ear - Nerves
parts of the ear - Outer ear canal
parts of the ear - Semicircular canals
parts of ear - Stirrup
Balance
we get dizzy because
human skeleton divided into
axial skeleton =
appendicular skeleton =
parts of the bone
end of each bone covered by tough smooth shiny substance called
bones held together by strong stretchy bands called
bones are made up of cells that are constantly being replaced - these are called
identify solids, liquids and gases
identify solids, liquids and gases
identify solids, liquids and gases
matter - give 4 properties
particles =
matter =
solids
liquids
gases
give 2 facts about the arrangement of particles for solids, liquids and gases
how do particles move for solids, liquids and gases
draw the particles arrangements
a=gas
b=solid
c=liquid
mixture =
separate =
filtering
mixing solid and liquid substances-
a mixture consists of at least two different substances mixed together
what do we observe when we mix substances?
mixing solid and liquid substances-
a mixture consists of at least two different substances mixed together
what do we observe when we mix substances?
mixing solid and liquid substances-
a mixture consists of at least two different substances mixed together
what do we observe when we mix substances?
mixtures and ways of separating
ways of separating different mixtures
revise:
a)mixture
b)separate
c)sieving
d)filtering
e)settling
Draw and label the substances to show what happens when you mix the following:
water and sand
Draw and label the substances to show what happens when you mix the following:
water and oil
Draw and label the substances to show what happens when you mix the following:
beans and peanuts
solution
dissolve
uniform
soluble
solvent
solute
soluble = can dissolve
insoluble = cannot dissolve
melting vs dissolving
substances in solutions cannot be separated by sieving, filtering,settling etc as they can pass through the very smallest holes
some solutes can be recovered/separated by
crystallization =
filter paper
crystallisation =
volume (is measured in ml or L)
mass (is measured in kg or g)
mass meter
measuring cylinder
saturated solution - a solution with solute that is unable to dissolve anymore- leaving undissolved substances at the bottom
saturated
rate
factors that affect the time it takes for a solute (e.g. sugar) to dissolve in a solvent (tea) - factors that affect the rate of dissolving
factors that affect the time it takes for a solute (e.g. sugar) to dissolve in a solvent (tea) - factors that affect the rate of dissolving
water pollution
causes of water pollution
throat is connected to
water pollution
water pollution
water pollution
water pollution
wetlands
wetland areas =
wetland ecosystems important to living things because
impact of loss of wetlands:
how wetlands act as filters and improve water quality
how are wetlands being destroyed
what is biodiversity
how is biodiversity affected when wetlands are destroyed
what is water quality
explain how wetlands remove pollution from water