They are chloroplasts where food is created through
photosynthesis, and & are green as they contain a
green pigment (chlorophyll)
Cell wall- strong, stiff, holds plant in shape,
made of cellulose.
Cell membrane- thin, flexible, lies along
inner-edge of cell wall, controls what goes
in/out of the cell.
animal- red blood cells
animal- have nucleus, cell membrane & cytoplasm
plant cells-have
stomata
remove cell wall, chloroplast, vacuole
cell membrane & cytoplasm
they dont have chloroplast
they dont receive sunlight
root-hair cells --> x.v
to bring mucus down to windpipe
Could I get some tissues? (paper)
cells with similar functions are grouped in
tissues
tissue
organ
o.s
organism
solids, liquids and gases
gas
solid
hard, fixed volume, etc
particles slide past each other
flow
particles free to move
24
15
29
the particles gain energy and vibrate faster
high forces of attraction
weaker forces of attraction
particles receive more energy and escape
forces
particles cool down and their forces of attraction increases
"
melting
evaporation
freezing
condensation
rain, snow, sleet
when clouds cannot hold water, it pours as rain
the liquid particles eventually get heated and lose the forces of attraction as they vibrate faster
from water cycle
stop global warming so the oceans don't dry up
to filter urea
bathing, washing
tiniest part of sàubstance
94
magnesium, beryllium, lithium, sodium, respectively
Al, B, Fl, K, respectively
hydrogen
ones at the end
sodium, aluminum
neon, argon
it is powdery
it is not a metal
it is semi-solid
it is not yellow
sodium and chlorine
hydrogen and sulfur
magnesium and oxygen
metal name should be written first
name to be altered on how many atoms it has
correct name- calcium sulfide
calcium nitrogen oxygen
magnesium carbon oxygen
lithium sulfur oxygen
elements have atoms of same kind
*ticked ones are elements*
2
sulfur-1, oxygen-2
hydrogen oxygen
hydrogen-2, oxygen-1
mono means 1 (atom)
magnesium oxide
sodium chloride
calcium chloride
oxygen hydrogen
lithium hydroxide
3
nitrogen
3
carbon dioxide
dry residue, bicarbonate
no. Moon's gravity causes tides.
800N
40 000N
contact forces is lesser
they'll stop sinking
750N
850kg
Jupiter
Saturn
92.5N
Earth's mass will be higher
weight
it needs more power to go away from Earth as its gravity pulls the
spacecraft back down
different directions
in the same path (orbit)
nebula
gravity
towards the sun
sun's gravity
Jupiter, as it is the largest after the Sun
vacuum
Earth's gravity
*
the larger the distance, the more the speed
sun and moon
tidal force
12 hours
12 hours
6 hours
water level is too low
moon is closest to Earth
chemical
electrical
chemical
chemical
gravitational potential & kinetic
gravitational potential
chemical, electrical
sound
hot soup gets cold easily
as the population increases, there will be an increase in the fuel-use (where
chemical energy will be used more often)
dissipated
electrical to light
chemical to kinetic
electrical to sound
transferred
*
*
light (useful), thermal (not useful)
chemical to kinetic (useful), thermal (not useful)
kinetic (useful), sound (not useful)
*
feeding
smell
CO2
reproduce
growth
chewing
movement
similar
different
3a
It means dividing into 2.
it respires
can sense change
it feeds
change in color
checking more parakeets in the wild.
iron, aluminum, sodium, gold, silver, titanium, platinum, beryllium, plutonium, einsteinium
it is less reactive
it is ductile, good conductor of electricity
can be bent into shape, can be formed into wires, respectively
gold, silver, bronze
left hand side
hydrogen, boron, oxygen, carbon, chlorine
making batteries
can float
right side
metal- containers, vehicle body, plates, cooking vessel, small containers
bucket, container, table, boxes, clothes
non-metal
liquid
conduct heat
mixture of metals
light
pure aluminum is weak
24 parts out of 24 are gold (pure)
18 carat is less pure
it is weak
cheap
strong
it is an alloy
less ductile than copper
conducts heat well
melting point
the particles gain energy and escape
it is cooled