تلخيص علوم منهج انجليزي صف خامس

الصف الصف الخامس
الفصل علوم الصف الخامس
المادة الفصل الاول
حجم الملف 334 KB
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تاريخ الإضافة 2020-06-23, 22:47 مساء

تلخيص علوم منهج انجليزي صف خامس : نقدم اليكم في هذا الملف تلخيصا شاملا ، من منهج العلوم الانجليزي الصف الخامس ،و قد تم تصميم هذا الملف لمساعدة طلابنا الاعزاء، في دراستهم و تحضيرهم للامتحان النهائي بشكل متكامل.

 

Created by Fatima Theyab 2018/2019

Science Gr

Plant life cycle

Life cycle : is a series of different stages of development

Alternation of generation : the process of alternating between asexual and sexual reproduction. Ex : Moss life cycle and Fern life cycle 

Flowers : are the reproductive organs of organism

Complete flower : the flower that has the all of the four main parts: petals, sepals, stamens and pistils

Petals : are the brightly colored outer parts of the flower

Sepals : are the green part below petals and protects the flower's part when it just a bud

Stamen : is the male part of the flower

Pistil : is the flower's female organ made of stigma, a style and an ovary

Filament : is the thin stalk portion of the stamen

 Anther : is at the top of filament and produces pollen grains

Stigma : is the opining at the top of the pistil

Style : is the long necklike structure that leads down to the ovary

 Ovary : the house of egg cells and it is the place where fertilization occurs

Incomplete flower : is missing one or more of the flower parts of a complete flower

Perfect flower : has both stamens and a pistil the male and female parts) ex : lilies, gladioli and tulips Incomplete perfect 

flower : has both male and female structures but missing petals. Ex: windflower

 Imperfect flower : a flower lack either a stamen or a pistil. ex : willow trees Pollination: the transfer of pollen from the stamen to the pistil 

Pollen : is a yellow powder that contains sperm cells

 Nectar : is a sweet liquid produced by flowers to attract pollinator

Self-pollination : it occurs when a perfect flower with both male and female parts pollinates itself

Cross pollination : it occurs when the pollen from one plant pollinates a flower on a different plant

Embryo : is the beginning of a new offspring

Seed coat : is the cover surrounding the seed. Germination is the development of a seed into a new plant

 Monocot : a type of flower that produces seeds with a single cotyledon. Ex : com plants, orchids and grasses 

Dico : a type of flower produces seeds with two cotyledons. Ex : bean plants and roses

Conifer : is a gymnosperm, a plant that has seeds but not flowers

 

Choose the correct definition

 a series of different stages of development

Alternation of generation

 Life cycle

 Germination

Pollinati

 

Sepals

 the male part of the flower

 theflower's female organ made ofstigma, a style and an ovary

the green part below petals and protects the flower's part when it just a bud

 the brightly colored outer parts of the flower

 

Incomplete flower

has both male and female structures but missing petals

is missing one or more of the flower parts of a complete flower

a flower lack either a stamen or a pistil

has both stamens and a pistil

 

Anther

the opining at the top of the pistil

 the thin stalk portion of the stamen

atthe top of filament and produces pollen grains

 the long necklike structure that leads down to the ovary

 

the process of alternating between asexual and sexual reproduction

Germination

Pollination

Alternation of generation

 Life cycle

 

the male part of the flower

pistil

sepals

 stamcn

petals

 

Dicot

is a gymnosperm, a plant that has seeds but not flowers

 a type of flower produces seeds with two cotyledons

a flower lack either male and female structures

 

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