Embed Size (px)
Citation preview
Topic 5
Heat and Cold
Science
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Climate
Animals live almost everywhere on Earth, from hot desert to freezing mountains.
Their bodies help them to survive in their environment.
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
Surviving in Cold Climates
A penguin is a bird.A bear is a mammal.Birds and mammals
are warm-blooded.They can stay active
even when the weather is cold.
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
Surviving in Cold Climates
Emperor penguins live in Antarctica near the South Pole.
Their bodies are covered with a thick layer of blubber and fluffy feathers to keep them warm.
They huddle together to keep warm.
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
Surviving in Cold Climates
Polar bears live in the Arctic, near the North Pole.
A thick fur coat stops heat escaping from their bodies.
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
Surviving in Cold Climates
Fur, fat and feathers are good insulators.
They don’t allow heat to pass through.
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
Surviving in Hot Climates
Elephants live in hot places. They do not need fur to keep warm.
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
Their huge bodies would get too hot if they did not have ways to cool down.
Surviving in Hot Climates
The elephant’s huge ears acts as radiators for heat to escape.
Flapping them creates a breeze to increase the cooling.
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
Surviving in Hot Climates
When it gets very hot, elephants take a bath.
They spray water with their trunks to keep cool.
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
Surviving in Hot Climates
Snakes and lizards are reptiles.Most reptiles live in the warmer parts
of the world.
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
Surviving in Hot Climates
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
Reptiles are cold-blooded.They need the warmth of the sun to
make their bodies active.
Surviving in Hot Climates
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
When the sun rises the lizard finds a place to bask.
The sun’s energy warms its body. It becomes more active and starts to feed.
Desert Animals
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
Desert animals are adapted to survive in high temperatures with very little water.
The horned viper keeps cool in the hottest part of the day by burying itself in sand.
Desert Animals
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
Small desert animals such as the gerbil and jerboa come out at night.
They rarely need to drink.
They get most of their water from food.
gerbil
jerboa
Desert Animals
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
The Fennec fox has large ears that help it listen for small animals to eat.
Its ears also work as radiators, giving out heat to help the fox cool.
How Animals Respond to Heat and Cold
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
cold-bloodedbaskwarm-blooded
insulators.
How Animals Respond to Heat and Cold
SAC – P4/SciencePB/Wendy Wallace Zerafa/Oct2013
Topic 5
THE END
