viernes, 12 de diciembre de 2014

PLANT REPRODUCTION (Science Year 5, Unit 2)

Last day we were talking about PLANT NUTRITION. We are going to review today using one of our THINKING ROUTINES: QUICK WRITE / QUICK DRAW.  Remember to draw and write as faster as you can with the ideas you had about last day lesson.

Today we are going to learn a bit more about how do plants reproduce. This STOPMOTION video will help you to understand.


  • At the end of the video you have to  answer these following questions. 
    • What is it needed for POLLINATION?
    • Do you think that just the bees can help with transportation?




SEXUAL REPRODUCTION
  • Flowers are the reproductive organs of the plant.
    • The stamen are the male. They produce polen.
    • The ovary is the female part. It produces ovules which  becomes seeds.



POLLINATION
  • Tiny pollen grains form on the stamens.
  • POLLINATION is teh movement of pollen from stamens to ovary. 
  • It used to take place in the same plant.
  • Wind and insects also carry plant to other plants. 



SEEDS AND FRUITS

  • After pollination the flower changes.
  • Petals fall and ovary grows. It becomes a fruit with seeds.
  • The fruit is ripe, it falls to the ground and the seeds fall out. 
  • The seeds germinate: they open, and small roots and tiny leaves grow.

ASEXUAL REPRODUCTION
  • Some plants reproduce without flowers or seeds:
    • TUBERS: they are underground stems. It develops roots and a stem rise above the ground.  For example he potato.
    • BULBS: they also grow underground. For example onions
    • STOLONS: These are stems which extend acroos the ground. Roots grop an a new plant begins. For example strawberries. 



LET'S PRACTISE ALL WHAT YOU HAVE LEARN DURING THIS TOPIC WITH THE FOLLOWING ACTIVITIES.