2. Plants give us food, medicines and clothes, and they give us the
oxygen we need to live.
Plants have different life processes: nutrition, interaction and
reproduction. We can classify plants into: Herbaceous, bushes and
trees.
Plants breathe and make their own food. To breathe, they absorb
oxygen and release carbon dioxide. To make their own food they
absorb sunlight, water and minerals and carbon dioxide. And they
release oxygen to the atmosphere.
Plants by Brenda and Elena
3. 1. Most flowers have male and female reproductive organs.
2. The pistil or carpel is female reproductive organ.
IT PRODUCES OVULES.
3. The stamens are the male reproductive organs.
THEY PRODUCE POLLEN.
4. Pollination takes place when pollen travels from one flower to another.
It can be animal pollination or wind pollination.
5. Fertilization takes place with the union of a grain of pollen and an
ovule.
6. The seed grows and grows in the carpel.
7. The seed becomes a small fruit.
8. The fruit gets bigger and bigger. The petals fall down.
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4. 9. The fruit changes colour. Many seeds grow inside it.
The seeds fall to the ground because: the fruit has ripened or
because animals that eat fruits have excreted them.
10. Germination takes place when a new plant grows from each
seed.
11. The small plants turn into big ones. New parts grow in the plant
such as trunks, branches, flowers, etc.
12. Most flowers have male and female parts
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5. Animal pollination is carried out by birds
and insects. Colourful petals attract
animals to a flower to drink nectar.
Pollen from the stamens stick to the
animal's body.
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6. Wind pollination is used by plants
which do not have colourful petals to
attract animals.
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7. 1. The roots fix the plant to the ground.
2. Water and minerals rise up through some vessels called xylem
and then reach the leaves.
3. The leaves mix water, minerals, sunlight and carbon dioxide and
produce sap or glucose.
4. Chloroplast in the leaves help to make sap or glucose.
5. The leaves have holes called stomata that absorb carbon dioxide
and release oxygen to the atmosphere.
6. Sap or glucose circulates from the leaves to the rest of the plant.
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8. 7. Photosynthesis is the process in which plants use water,
minerals, sunlight and carbon dioxide. This also means that plants
release oxygen to the atmosphere.
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9. WHAT IS PHOTOSYNTHESIS?
WHAT ARE THE FUNCTIONS OF THE ROOTS?
AND THE FUNCTIONS OF STOMATA?
WHAT IS FERTILIZATION?
WHAT DO PLANTS GIVE US?
WHAT DO CHOROPLASTS DO?
WHAT IS GERMINATION?
Plants by Brenda and Elena
10. WHAT IS PHOTOSYNTHESIS?
WHAT ARE THE FUNCTIONS OF THE ROOTS?
AND THE FUNCTIONS OF STOMATA?
WHAT IS FERTILIZATION?
WHAT DO PLANTS GIVE US?
WHAT DO CHOROPLASTS DO?
WHAT IS GERMINATION?
Plants by Brenda and Elena