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Science - Unit 2

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Sorting Living
Things
Science Grade 3
Ms. Stefanie
Mind Map 1
Classifying means
putting things into groups
based on whether
they are alike or different.
— The Meaning of Classifying —
ANIMALS
GROUP
M
y
Bi
g
F
amily
I
s
Re
ally
Am
azing
Mammals
Characteristics:
●
Have hair or fur.
●
Produce milk for their young.
●
Give birth to their young alive.
Egg-laying
mammals:
Platypus and
echidnas.
Characteristics:
●
Have beaks.
●
Have feathers.
●
Have a pair of wings.
●
Lay eggs with shells.
Examples:
Sparrow, owl,
ostrich and
penguin.
Birds
Fish
Characteristics:
●
●
●
●
Examples:
Guppy, mollies and
shark.
Have fins (help the fish to swim)
Have gills (help the fish to breathe
in water)
Have scales that protect their
bodies.
Most lay eggs.
Seawater fish
Freshwater fish
Clownfish
Swordtails
Seahorses
Goldfishes
Characteristics:
●
●
●
●
●
●
Have three main body parts:
head, thorax, and abdomen.
Have feelers.
Have six legs.
Some have wings.
Have a hard covering.
Lay eggs.
Examples:
Bee, mosquito and
cockroach.
Insects
Reptiles
Characteristics:
●
●
●
Have scales.
Lay eggs with leathery shells.
Are cold-blooded (their body
temperature depends on their
surroundings)
Examples:
Tortoise, lizard
and snake.
Characteristics:
●
●
●
●
●
Can live on land and in water.
Have moist skin
(if their skins dry out, they will die)
Their skins can absorb water and
oxygen.
Are cold-blooded.
Lay eggs surrounded by
jelly-like substance.
Examples:
Frog, newt and
salamander.
Amphibians
Other group of animals are
vertebrates and invertebrates.
Group of
Animals
Characteristics
•
Vertebrates
•
Invertebrates •
Examples
Have internal bony skeletons
(inside their body)
Mammals, birds,
fish, reptiles and
amphibians.
Do not have internal bony skeletons.
Instead, they have a hard body covering
or external skeleton.
Insects, spiders
and snails.
PLANTS GROUP
Flo-noflo
Flowering Plants
• Produce flowers and
reproduce by using seeds.
• Their seeds are found in the fruits
they produce.
• The seeds can be moved by
wind, water and animals.
Examples:
Lilac bush, plum
tree and tulip.
Non-flowering Plants
•
Do not produce flowers and reproduce by using spores.
Examples:
Fern, moss and
pine tree.
We can also classify plants as those that
grow on land and those that grow in water.
Group of Plants
Grow on land
Grow in water
Examples
Azalea, maple tree and
cactus
Duckweed, hydrilla, and
water lily
FUNGI
• Not a plant or an animal
• Come in many colours and shapes
• Feed on animals and plants, dead or alive
(decay or decompose)
• Do not have chlorophyll to make their
own food
• Sometimes edible, other times poisonous
All fungi reproduce from spores.
Other examples of fungi are
bracket fungus, yeast and mould.
BACTERIA
Bacteria can multiply
very quickly because
they reproduce by
dividing themselves.
We can only see them
through a microscope.
Like fungi, useful bacteria can help in
the production of food and medicine.
Mind Map 2
Thank you ☺
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