1. Unit 5B: Life Cycles
Life Cycles T
Unit 5B: Life Cycles

2. Unit 5B: Life Cycles: Vocabulary
Some useful words
Stamen
Style
Stigma
Sepal
Petal
Ovary
Pollen
Reproduction
Germination
Pollination
Fertilisation
Dispersal
the pollen producing part of the flower
where the pollen tubes grow
a sticky section of the flower where the pollen lands
the outermost section of the flower which is usually green and smaller than the petals
usually the brightly coloured parts of the flower used to attract the insects
this protects the ovule and once fertilisation has taken place it will become the fruit.
minute grains, usually yellow in color
organisms generate new individuals of the same kind
when a seed starts to grow
transfer of pollen from the stamen to a stigma
the combining of cells, leading to reproduction
when the seed leaves the flower V
Unit 5B: Life Cycles: Vocabulary

3. Unit 5B: Flowering Plants Reproduce
Where did the fruits grow from?
What will happen to the fruits?
Why are they important to the plant? ?
Unit 5B: Flowering Plants Reproduce: L.O. 1: N.C.

4. Unit 5B: Seed Dispersal: L.O. 2, 3, 4: N.C.
Why do the seeds needs to be dispersed?
How do you think each of the seeds above are dispersed? ?
Unit 5B: Seed Dispersal: L.O. 2, 3, 4: N.C.

5. Unit 5B: Germination: L.O. 5, 6, 7, 8, 9, 10: N.C.
What do plants need to grow?
What do you think seeds need to germinate?
Make a list of the factors that you think may affect the germination of cress seeds.
Select one to investigate. Which one have you chosen?
What will you measure and record? How long will you allow for the investigation?
How will you keep it a fair test?
How will you record your results?
WATER
LIGHT
WARMTH I
Unit 5B: Germination: L.O. 5, 6, 7, 8, 9, 10: N.C.

6. Unit 5B: Germination: L.O. 5, 6, 7, 8, 9, 10: N.C.
…cont
Once you have all the results from your investigation make a conclusion from your results. What do they show?
You will need to confer with other groups to see what their findings were.
Do seeds need warmth to germinate?
Do seeds need water to germinate?
Do seeds need light to germinate?
Are the results as you would have expected them? I
Unit 5B: Germination: L.O. 5, 6, 7, 8, 9, 10: N.C.

7. Unit 5B: Germination: L.O. 5, 6, 7, 8, 9, 10: N.C.
Support slide
Germination
Do seeds need light to germinate?
Put equal numbers of cress seeds in 2 dishes on cotton wool.
Water each dish with the same amount of liquid.
Place one of the dishes in a dark room and one near the window.
It is important that they are both the same temperatures to make this a fair test.
Water the 2 dishes every 2 days and check if any of the seeds have germinated I
Unit 5B: Germination: L.O. 5, 6, 7, 8, 9, 10: N.C.

8. Unit 5B: Pollination: L.O. 11: N.C.D
Unit 5B: Pollination: L.O. 11: N.C.

9. Unit 5B: Animals and young
Unit 5B: Animals and young: L.O. 14, 15: N.C.

10. Unit 5B: The Life Cycle of a PlantD
Unit 5B: The Life Cycle of a Plant: L.O. 13: N.C.

11. Unit 5B: Flowers
Flowers D
Unit 5B: Flowers: L.O. 12: N.C.

12. Unit 5B: What if Animals don’t Reproduce?
Unit 5B: What if Animals don’t Reproduce: L.O. 16: N.C.

13. Unit 5B: Life Cycles – summary slide
Seeds disperse
Wind
Plants reproduce
Warmth
Germination
Animals
Seed dispersal
Insects
Water
Food
Life Cycles
Babyhood
Pollination
Plants life cycle
Fertilisation
Humans reproduce
Childhood
Seed production
Germination
Seed dispersal
Adolescence
Adulthood S
Unit 5B: Life Cycles - summary slide