March 2006 Download 2.3_2.0b 1 Science Knowledge: Science 2: Life Processes and living things K2.3 Green plants and organisms Download K2.3_2.0b This document can be freely copied and amended if used for educational purposes. It must not be used for commercial gain. The author(s) and web source must be acknowledged whether used as it stands or whether adapted in any way. Authored by Keith Ross, University of Gloucestershire. accessed from http://www.ase.org.uk/ scitutors / date created March 2006
29
Embed
1 March 2006Download 2.3_2.0b Science Knowledge: Science 2: Life Processes and living things K2.3 Green plants and organisms Download K2.3_2.0b This document.
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
March 2006 Download 2.3_2.0b
1Science Knowledge: Science 2: Life Processes and living things K2.3 Green plants and organisms
Download K2.3_2.0b This document can be freely copied and amended if used
for educational purposes. It must not be used for commercial gain. The author(s) and web source must be acknowledged whether used as it stands or whether adapted in any way.
Authored by Keith Ross, University of Gloucestershire. accessed from http://www.ase.org.uk/scitutors/
Energy for germination Which of these is the direct source of energy used
by a seed as it germinates? Carbon dioxide and water 31% Light from the sun 53% Respiration of carbohydrate in the seed 12%
March 2006 Download 2.3_2.0b
18
Germination This time-lapse video was made by Colin
Forster of the University of Gloucestershire using the Blue computer-linked microscope given to all primary schools.
Click screen to start videoVideo by
Colin Forster
March 2006 Download 2.3_2.0b
19
Plants & Fertiliser
Many farmers add nitrogen-based fertiliser to their soil. Click up to 3 of the following to show what could happen to the nitrogen. It could....
March 2006 Download 2.3_2.0b
20
Plants & FertiliserNitrogen could … . … be taken up by the plant and become
part of the plant 80% … return to the atmosphere during
photosynthesis 55% … return to the atmosphere by bacterial
action 35% … dissolve in rainwater and leech into
nearby streams 77%
March 2006 Download 2.3_2.0b
21
Transport in plantsWater, minerals and oxygen (air) in soil
Carbon dioxide and oxygen in air Fuel and materials from leaves to roots? Oxygen to roots? .. to other cells? Minerals and water from roots to leaves phloem and xylem
March 2006 Download 2.3_2.0b
22
How the mangrove tree gets air to its roots. www.niceness.org/pics/indo/15.html www.answers.com/topic/mangrove
The Mangrove tree.The Mangrove tree.
Water logged roots obtain Water logged roots obtain their oxygen by putting up their oxygen by putting up these snorkels – vertical these snorkels – vertical tubes giving the flooded tubes giving the flooded roots access to airroots access to air
March 2006 Download 2.3_2.0b
23
Staying alive … Transpiration ~ give me water!
March 2006 Download 2.3_2.0b
24
Let’s talk babies … Why do daffodils produce flowers? Why do apple trees produce apples? How and why do flowering plants produce
seeds? How do seeds travel to new places? What is the difference between
germination and growth?
March 2006 Download 2.3_2.0b
25
Let’s talk babies ctd…
http://www.geocities.com/mabdulrahmanb/plants
March 2006 Download 2.3_2.0b
26
Staying Alive … Adaptations
March 2006 Download 2.3_2.0b
27
fruit, nut, seed or vegetable?Meaning for (a) shopper (b) scientist?
tomato peanut corn-on-the-cob
runner-bean apple cucumber
cabbage black-pepper rhubarb
March 2006 Download 2.3_2.0b
28
Fruit or Vegetable?
March 2006 Download 2.3_2.0b
29
Before you complicate things with too much detail, make sure your pupils understand how plants work:
Why do they spread their leaves? .. and their roots?