"Make an Ecological Bottle" Biology and Environment PPT Courseware 3

Description

"Make an Ecological Bottle" Biology and Environment PPT Courseware 3

learning target:

Understanding that organisms interact and depend on each other in a certain area will form an ecological community.

Make ecological bottles according to the design plan and actual conditions, and insist on managing and observing the ecological bottles.

Recognize the need to listen to each other's opinions, work together, manage and observe.

Look at the pictures and answer the questions:

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?

Tip 1: Methods and steps to make an ecological bottle

Step one: put sand and gravel first

Step 2: Pour water again to plant aquatic plants (press the roots into the sand and gravel, that’s it)

Step 3: Let it settle for a while and add animals

(Put the bag containing the animal into the bottle, and fasten the mouth of the bag to the mouth of the bottle, so that the temperature difference between the inside and outside is not large before entering the animal)

Step 4: Mark the water level and label it

Like these living things and non-living things in the pond, they interact and depend on each other to form an inseparable whole. We can think of them as an ecosystem.

For example, a forest, a grassland, a lake, an ocean, etc. can be regarded as an ecological community.

think:

What creatures are you going to let live?

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?

Does the order in which creatures are put in need to be considered?

step:

First put a layer of washed sand at the bottom of the bottle (if you want to add a few pebbles, add them at this time)

Fill half the bottle with water from natural waters.

Plant the water plants you prepared in the bottle.

Then add small animals.

Make labels with the names of the group members and stick them on the outside of the eco-bottle.

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 ant colony. ( )

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

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

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 stability of the small ecological bottle designed and produced for a long time, 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: 2024-11-19

This template belongs to science courseware Fifth Grade Science Volume 1, Textbook Edition industry PPT template

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