

Plants
Presentation
•
Science
•
5th Grade
•
Hard
Joseph Anderson
FREE Resource
5 Slides • 2 Questions
1
Lesson 1 plants increasing the number
by ameya hari

2
USES OF PLANTS
CEREALS , PULSES, VEGETABLES COME FROM PLANTS.
SUGAR, OIL AND JAGGERY ARE OBTAINED FROM PLANTS AS WELL
WOOD, FIBRE ,RUBBER,GUM,TEA AND COFFEE ARE OBTAINED FROM PLANTS
HALF OF OXYGEN IS OBTAINED FROM PLANTS
PLANTS HELP IN REDUCE SOIL EROSION
3
New plants from seeds
Why does a plant produce many seeds? The answer is that they need create more of them self or else their species will disappear from earth. But many seeds grow into new plant, this is because :
1. some seeds are not fully grown when separated from parent plants
2. some seeds are destroyed by wind or water
3. some seeds are eaten or destroyed by birds or insects
4
EXPERIMENT TIME, A Seed And Its Parts
soak some gram seeds in water for a whole night. you will see that some seeds have their outer cover has been separated, the outer cover is seed coat. inside there are two seed leaves or cotyledons. separate them two and you will find the baby plant.it has both a tiny shoot and tiny root.
5
monocot and dicot seeds
seeds that have one cotyledon are called monocot seeds
seeds that have two cotyledon are called dicot seeds
6
Multiple Choice
a seed with two cotyledons are called -------------
monocot seeds
dicot seeds
none of the above
damaged seeds
hibuscus
7
Multiple Select
what are the uses of plants?
they provide us with oxygen
they cause
soil erosion
they provide us with food
they prevent soil erosion
no use of plant
Lesson 1 plants increasing the number
by ameya hari

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