"Make an Ecological Bottle" Biology and Environment PPT Courseware 4

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"Make an Ecological Bottle" Biology and Environment PPT Courseware 4

Look at the pictures and answer the questions:

1. What aquatic organisms are there in the pond?

Aquatic plants, small fish, big fish, shrimp, snails, aquatic insects, frogs, ducks, dragonflies, etc.

2. What living conditions do aquatic plants need?

Air, water, soil, sunlight, etc.

3. What help do the plants in the pond provide to the animals?

oxygen, food

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 and influencing each other, forming an ecosystem. ( )

3. Non-living things play no role in the ecosystem. ( )

4. The more animals and plants in the ecological bottle, the better. ( )

think about it

1. Should we put sand first or water first?

The water can be slowly poured down along the wall of the cup.

2. What kind of water should I choose? Is tap water okay?

There are pesticides in tap water, preferably pond water.

3. Should we put plants or animals first?

Put plants first to increase oxygen in the water

4. How much do you think should be put in? How many small fish should be put in?

The number of small fish should match the number of plants in the ecological bottle and the size of the container

choose:

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 animals first B. Put plants first C. Put 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 and depend on each other. B. Have no influence on each other.

C. Living things will affect non-living things, but non-living things will not affect living things.

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Update Time: 2024-12-01

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