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Plants (NS Unit 2)

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by

ELENA LÓPEZ HERRERA

on 3 November 2017

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Transcript of Plants (NS Unit 2)

Plants are
living things
.
Plants have three life processes:
nutrition
,
interaction
and
reproduction
.
Plants give us the
oxygen
we need to live,
food,

medicine
and
clothes
.
Plants need
sunlight
,
air
(oxygen),
water
,
soil
and
to grow.


It carries water, nutrients and minerals from the roots to the leaves.
They make the food for the plant using sunlight, air and water, nutrients and minerals from the soil.

This process is called
photosynthesis
and it provides oxygen to the atmosphere.
They are underground.

They absorb water, nutrients and minerals from the soil.

They hold the plant in the soil.
UNIT 2: PLANTS
Flowering plants
Non-flowering plants
Angiosperms
Gymnosperms
Mosses
Angiosperms
Flowering plants
They have beautiful flowers.
They produce fruit with seeds inside.
Examples: rose, pear tree, rice, beanstalk.
Gymnosperms
They have small flowers.
They don´t produce fruit.
The seeds develop inside cones.
Examples: pine tree, fir tree, cypress.
Non-flowering plants
Mosses
Ferns
They are very small and grow on rocks and tree trunks.
Ferns have large leaves.
DECIDUOUS TREES

Trees lose their leaves in autumn
EVERGREEN TREES

Their leaves are green all year
DECIDUOUS AND EVERGREEN PLANTS


They produce seeds
They don't produce seeds and reproduce using
SPORES
.
Grasses
Bushes
Trees
They have soft stem.
They are thin and flexible.
They are usually short.
Examples: lavender,
rosemary.

They have thick, hard stem, low branches. They are taller than grasses and live longer.
Examples: corn, boxwood, oleander.
They have high branches and a thick, hard stem (trunk). They are the tallest plants.
Plant Respiration
DURING THE DAY ....
Plants take in Carbon dioxide and release Oxygen.
AT NIGHT...
Plants take in oxygen and release Carbon Dioxide.
Characteristics
Parts of a Plant
Nutrition
Roots
Stem
Leaves
Types of Plants
Plant Classification
according to reproduction
They are the reproductive part of the plant.
The seeds are formed inside it and the fruit is formed inside the seed.
Flowers
Plants produce their own food using a process called
PHOTOSYNTHESIS
.
1. The
roots
absorb water and minerals from the soil.

2. The water and minerals travel up the
stem
to the leaves.

3. The
leaves
absorb the carbon dioxide from the air. With the energy and light from the sun, and the water and minerals from the stem the plant makes its food.

4. During this process (photosynthesis) plants release
oxygen
into the air.

Ferns
Types of leaves
Entire
Dentate
Lobed
Palmate
Serrate
Sinuate
Life cycle of a plant
Parts of a flower
Petal
Carpel
Sepal
Stamen
It can be different colours and attracts insects to the flower.
The seeds develop here.
Green small leaves that protect the flower before it opens.
They have pollen at their ends.
1. Most seeds need warmth, water, sunlight and air to germinate.
2. Roots grow down from the seed.
3. A stem grows up.
4. Leaves grow on the stem. The plant can now make its own food.
5. A flower grows on the plant.

6. Seeds develop in the carpel.
7. The plant dies, but new plants can grow from its seeds.
Full transcript