B1 TOPIC 1 - VARIATION

Extreme Environments (part 2/2 )

CVHS GCSE POWERPOINT SHARE

Polar RegionsOrganisms in the Arctic and Antarctic have adapted to living in the cold, icy and desolate conditions.

Take a look at the animals on the next 2 slides and think of any adaptations it may have...

Polar Bear (Arctic)

Polar Bear (Arctic)

Polar Bear (Arctic)

Large Feet: to spread it’s weight so they don’t sink into snow or break

through the ice

Polar Bear (Arctic)

Large Feet: to spread it’s weight so they don’t sink into snow or break

through the ice

White fur: match and blend in with surroundings (camouflage)

Polar Bear (Arctic)

Large Feet: to spread it’s weight so they don’t sink into snow or break

through the ice

White fur: match and blend in with surroundings (camouflage)

Rough paws: to help them grip to the ice

and snow.

Polar Bear (Arctic)

Large Feet: to spread it’s weight so they don’t sink into snow or break

through the ice

Oily fur: water resistant and prevents

evaporation of sweat

White fur: match and blend in with surroundings (camouflage)

Rough paws: to help them grip to the ice

and snow.

Polar Bear (Arctic)A compact shape: small surface

area to reduce heat loss

Large Feet: to spread it’s weight so they don’t sink into snow or break

through the ice

Oily fur: water resistant and prevents

evaporation of sweat

White fur: match and blend in with surroundings (camouflage)

Rough paws: to help them grip to the ice

and snow.

Polar Bear (Arctic)A compact shape: small surface

area to reduce heat loss

Large Feet: to spread it’s weight so they don’t sink into snow or break

through the ice

Oily fur: water resistant and prevents

evaporation of sweat

White fur: match and blend in with surroundings (camouflage)

Thick layer of blubber: acting as insulation and an energy store when

food is scarce

Rough paws: to help them grip to the ice

and snow.

Polar Bear (Arctic)A compact shape: small surface

area to reduce heat loss

Large Feet: to spread it’s weight so they don’t sink into snow or break

through the ice

Oily fur: water resistant and prevents

evaporation of sweat

White fur: match and blend in with surroundings (camouflage)

Rough paws: to help them grip to the ice

and snow.

Excellent sense of smell: which makes it

easier for them to hunt prey

Thick layer of blubber: acting as insulation and an energy store when

food is scarce

Polar Bear (Arctic)A compact shape: small surface

area to reduce heat loss

Large Feet: to spread it’s weight so they don’t sink into snow or break

through the ice

Oily fur: water resistant and prevents

evaporation of sweat

Thick coat: traps a warm layer of air, acting

as insulation

White fur: match and blend in with surroundings (camouflage)

Rough paws: to help them grip to the ice

and snow.

Excellent sense of smell: which makes it

easier for them to hunt prey

Thick layer of blubber: acting as insulation and an energy store when

food is scarce

Polar Bear (Arctic)A compact shape: small surface

area to reduce heat loss

Large Feet: to spread it’s weight so they don’t sink into snow or break

through the ice

Oily fur: water resistant and prevents

evaporation of sweat

Thick coat: traps a warm layer of air, acting

as insulation

White fur: match and blend in with surroundings (camouflage)

Rough paws: to help them grip to the ice

and snow.

Excellent sense of smell: which makes it

easier for them to hunt prey

Thick layer of blubber: acting as insulation and an energy store when

food is scarce

Adaptations

Write the adaptation of the polar bear that matches with the picture...

Adaptations

‘Fat Lady’

Adaptations

‘Sally’s Trash’

Adaptations

‘Thick Coat

Adaptations

‘Your walking on think ice...’

Adaptations

‘smells good enough to eat’

Adaptations

‘slippery oil’

Adaptations

‘feels like sandpaper’

Adaptations

‘camouflage’

FAT LADY = Thick Layer Of Blubber

SALLY’S TRASH = compact shape

THICK COAT = thick coat...

YOU’RE WALKING ON THIN ICE = big feet

SMELLS GOOD ENOUGH TO EAT = good sense of smell

SLIPPERY OIL = greasy fur

FEELS LIKE SANDPAPER = grippy paws

CAMOUFLAGE = white fur

You will only ever need to know 4 of these

QuestionsJohn looks at a polar bear, he sees that he has big feet and a thick coat of fur - why does the polar bear have these features? (3)

The polar bear lives in the Arctic - Explain how it has adapted to cope with cold conditions (4)

Penguin (Antarctic)

Polar Bear (Arctic)

Polar Bear (Arctic)

Thick Layer Of Blubber: to insulate itself and act as an energy

store

Polar Bear (Arctic)

Large Feet: to spread it’s weight so they don’t sink into snow or break

through the ice

Greasy Feathers: sheds water, which reduces

heat lossThick Layer Of Blubber: to

insulate itself and act as an energy store

Polar Bear (Arctic)

Huddle together: to conserve heat and

block wind

Thick Layer Of Blubber: to insulate itself and act as an energy

store

Greasy Fur: sheds water, which reduces

heat loss

Polar Bear (Arctic)

Large Feet: to spread it’s weight so they don’t sink into snow or break

through the ice

Streamlined body: reduces water

resistance, so they swim fast and catch fish

White fur: match and blend in with surroundings (camouflage)

Rough paws: to help them grip to the ice

and snow.

Huddle together: to conserve heat and

block wind

Thick Layer Of Blubber: to insulate itself and act as an energy

store

Greasy Fur: sheds water, which reduces

heat loss

Polar Bear (Arctic)

Large Feet: to spread it’s weight so they don’t sink into snow or break

through the ice

Streamlined body: reduces water

resistance, so they swim fast and catch fish

White fur: match and blend in with surroundings (camouflage)

Rough paws: to help them grip to the ice

and snow.

Huddle together: to conserve heat and

block wind

Thick Layer Of Blubber: to insulate itself and act as an energy

store

Greasy Fur: sheds water, which reduces

heat loss

Adaptations

Write the adaptation of the Penguin that matches with the picture...

Adaptations

‘Fat Lady’

Adaptations

‘Tesco Hudl’

Adaptations

‘Crazy Audi’

Adaptations

‘Go grease lightning, you're burning up the quarter mile(Grease lightning, go grease lightning)

Go grease lightning, you're coasting through the heat lap trial(Grease lightning, go grease lightning)

You are supreme, the chicks'll cream for grease lightning(Go, go, go, go, go, go, go, go, go, go)

We'll get some purple French taillights and thirty inch fins, oh yeahA Palomino dashboard and duel muffler twins, oh yeah

With new pistons, plugs and shocks I can get off my rocksYou know that I ain't bragging, she's a real pussy wagon

Grease lightning’

FAT LADY = Thick Layer Of Blubber

TESCO HUDL = Huddle together

CRAZY AUDI = Streamline body shape

‘Go grease lightning, you're burning up the quarter mile(Grease lightning, go grease lightning)

Go grease lightning, you're coasting through the heat lap trial(Grease lightning, go grease lightning)

You are supreme, the chicks'll cream for grease lightning(Go, go, go, go, go, go, go, go, go, go)

We'll get some purple French taillights and thirty inch fins, oh yeahA Palomino dashboard and duel muffler twins, oh yeah

With new pistons, plugs and shocks I can get off my rocksYou know that I ain't bragging, she's a real pussy wagon

Grease lightning’ = Greasy Feathers

QuestionsThe Penguin lives in the Antarctic, a very cold environment. Explain how it has adapted to cope with these conditions (4)

The polar bear and the penguin have both adapted to survive extremely cold environments, and deep sea creatures have adapted for the cold, dark oceans. Explain and compare how and why these organisms have adapted to survive (6)