Other Sciences

6th -

8thgrade

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Scientific Method

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10 questions

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  • 1. Multiple Choice
    2 minutes
    1 pt
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    Students were investigating some properties of rocks. They wanted to compare the volumes of the rocks.


    Which tool should the students use to accurately measure the volume of each rock?

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  • 2. Multiple Choice
    2 minutes
    1 pt

    Some researchers are developing a new fertilizer designed to improve the growth of plants in hot, dry climates. The fertilizer was applied to one hundred desert plants in a greenhouse. The average daytime temperature in the greenhouse was 90°F, and the humidity levels were low. Which is best for the researchers to do next?

    A compare plants that received fertilizer to similar plants that received none

    B begin selling the fertilizer to gardeners living in hot, dry climates

    C change the conditions in the greenhouse and retest the fertilizer

    D test the fertilizer on plants that are adapted to cooler climates

  • 3. Multiple Choice
    2 minutes
    1 pt

    A scientist investigates the effect of carbon dioxide on plant height. The scientist grows plants in several closed containers. All the plants receive the same amounts of water and light, but the air in each container has a different amount of carbon dioxide. What is the independent variable in this experiment?

    the amount of carbon dioxide in each container

    the number of plants in each container

    the amount of water provided to the plants

    the height of each plant after a period of time

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