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    prepare a model based on any natural cycle and present it in a science exhibition

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    Prepare a model based on any natural cycle and present it in a science exhibition.

    Prepare a model based on any natural cycle and present it in a science exhibition.

    Q. 9 3.9 ( 23 Votes )

    Prepare a model b

    Class 9th

    MHB - Science & Technology

    7. Energy Flow in an Ecosystem

    Answer :

    The water cycle is one of the important natural cycles. In the water cycle water goes into the atmosphere in the form of vapours from the water bodies such as ocean, rivers and comes on the earth as liquid water as rain.

    Let’s try to make a model of water cycle which may useful in helping you to understand the process.

    Materials required:

    A large zip-lock plastic bag, water, food colour, masking tape and a thermometer

    Procedure:

    i. Put about 250 ml of water into the bag. Add a drop or two of food colour.

    ii. Now close the bag and fixed the bag on the window which is receiving sunlight.

    iii. Hold the bulb of the thermometer against the bag for three minutes and then record the temperature.

    iv. Let the bag hang in the sun for 3-4 hours then observe the bag again.

    v. Look for any changes in the bag. Small water droplets will appear on the side of the bag and the level of water goes down.

    vi. Hold the bulb of the thermometer against the bag again for three minutes. Record the change in temperature.

    Inference:

    Small water droplets on the wall of the bag is due to evaporation and it will condensed to water. Thus, shows water cycle.

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    Prepare a model based on any natural cycle and present it in a science exhibition

    Prepare a model based on any natural cycle and present it in a science exhibition - Science - Energy Flow in An Ecosystem

    Prajakta, asked a question

    Subject: Science, asked on 24/9/18

    Prepare a model based on any natural cycle and present it in a science exhibition

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    Ganti Amrutha Varshini answered this

    Dear student,

    ​​​​​​Such questions are made for enhancing the self creative skills and should be tried answering on your own. However, here are a few points that will help you in framing your answer:

    1.By using card board make an attempt to cut out the shapes required for the project

    2.Assemble them and make a conclusion based on the project

    You may feel free to contact us if you face any issue or difficulty while composing your answer. You can also send us your answers here for a feedback and required corrections, if any.

    Regards

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    Mohammed 11 day ago
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