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"Be a Small Ecological Bottle" Pond Community PPT Courseware
Questions to think about:
1. What aquatic organisms are there in the pond?
2. What living conditions do aquatic plants need?
3. What help do the plants in the pond provide to the animals?
4. What contributions do animals make to the growth of plants?
5. What non-living things are there in the pond?
6. What effect do non-living things have on living things?
summary
1. Living things and non-living things interact and depend on each other to form an inseparable whole. We can regard them as an ecosystem.
2. The relationship between living things and non-living things is: interaction and interdependence.
Experiment: Discuss what materials should be prepared to make a small ecological bottle, and record the results of the discussion.
What kind of creature can live in this limited space?
If there are animals, what is their food source?
In addition to adding creatures, do you need anything else?
What creatures are you going to let live?
Does the order in which creatures are put in need to be considered?
1. Prepare appropriate containers
2. Load sand
Wash the sand and put it in the bottle
Think about it: Why are eco bottles filled with sand? Do you need to wash the sand?
3. Add water.
It is best to add non-polluted river or pond water
If you add tap water, leave it for 24 hours before adding it to the ecological bottle. Do you know why?
Class exercises
1. The bottles we use to make eco-bottles must be transparent. This is because ( ).
A. Let the plants inside see the light B. Make it easy to observe C. Let the plants see the light and make it easy to observe
2. When placing animals and plants in ecological bottles, you should ( ).
A.Put the animals first B.Put the plants first C.Put the animals and plants together
3. The function of the plants in the ecological bottle is ( ).
A. Beautify B. Provide oxygen C. Fix sand
4. To maintain the long-term stability of the small ecological bottle designed and produced, you should pay attention to ( ).
A. Open and transparent B. Reasonable ratio of biological species and quantity C. Placed under weak scattered light
5. The living and non-living things in the pond, they are ( ).
A. Interact. Interdependent. B. Have no influence on each other.
C. Living things will affect non-living things, and non-living things will not affect living things.
judge:
1. Before making an ecological bottle, we must first understand the living needs of these creatures. ( )
2. A group of ants live together, relying on each other and influencing each other, forming an ant colony. ( )
3. Non-living things play no role in the ecosystem. ( )
4. The more animals and plants in the ecological bottle, the better. ( )
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"Be a Small Ecological Bottle" Pond Community PPT Courseware 2:
"Be a Small Ecological Bottle" Pond Community PPT Courseware 2 Questions to think about: 1. What aquatic organisms are there in the pond? Aquatic life includes aquatic animals and plants, such as aquatic plants, fish, turtles, and zooplankton. 2. What conditions do aquatic plants need to survive? Water, sunlight, soil (..