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View the document Table of contents
View the document Foreword
View the document Acknowledgements
View the document Bibliography
View the document Classification of living organisms
View the document The food chain game
View the document Growing peanuts
View the document Roots
View the document Root hairs
View the document Vascular bundles
View the document Presence of minerals in soil
View the document Necessity of sunlight
View the document Transport of water in plants
View the document Transpiration
View the document Presence of starch in leaves
View the document Pollination
View the document Seed dissemination
View the document Seed structure
View the document Cotyledons
View the document Necessity of water for germination
View the document Rainfall on leaves
View the document Growth curve of a plant
View the document Grafting
View the document Importance of ground cover
View the document Cell-tissue-organ-system-organism
View the document Length of the small intestine
View the document Enzymes
View the document The three food groups
View the document Three food groups homework
View the document Carnivore and herbivore teeth
View the document The food chain game
View the document Long capacity
View the document Model lung
View the document Blood circulation
View the document How physical activity affects heart and breathing rates
View the document Locomotion
View the document Antagonistic muscles
View the document Suction
View the document Fern reproduction
View the document Moss preservation
View the document Are yeast living organisms?
View the document Yeast
View the document Yeast budding
View the document Nitrogen fixing nodules
View the document Amoeba
View the document Bursting red blood cells
View the document Length of a ténia
View the document Model of a schistosome
View the document Adaptations
View the document Mountain formation
View the document Artesian well
View the document Bone structure
View the document Reflexes
View the document Test for glucose
View the document Test for starch
View the document Test for fats
View the document Test for proteins
View the document Cooling effect of sweat
Open this folder and view contents MICROSCOPE PREPARATIONS

Rainfall on leaves

Class: 6ème

Lesson: Les plantes et l'homme: Leur importance dans le monde vivant

Rationale: Show that leaves as ground cover can protect the soil from erosion.

Materials:

sand and leaves

watering can (or can with holes punched in it)

water

dissecting tray (science kit)

large dish pan

Procedure:

1. Put dissecting tray upside down in the bottom of the large pan.

2. Put a layer of sand on top of the dissecting tray.

3. Lay a few leaves on top of the sand.

4. Let it rain. The sand will be washed off except for that under the leaves.

Source: HBJ Concepts in Science Orange, p. 175.