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sergun252005
16.02.2021 •
Chemistry
Please help me
Choose a topic that you are interested in and come up with a testable question.
Write a procedure so that you could perform an experiment if you wanted to, or someone else could read it and follow the steps. Include all the steps of the scientific method. Since you will not be able to record data or draw a conclusion, for the last two steps please include a description of what each step involves.
Your finished product should include the following:
Experiment Topic:
Experiment Purpose:
Hypothesis:
Identify the independent, dependent, and controlled variables:
These are the materials someone would need if they were going to do this experiment:
Procedures (these are the step-by-step instructions someone would follow in order to do this experiment):
This is how the experiment uses the scientific method (include all of the steps in the proper sequence):
Conclusion questions:
• What measurements or other method of data collection would you use?
• How could you form a statement about your hypothesis based on the data?
Solved
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Ответ:
Materials Needed:
4 clear, glass jars filled with plain tap water
Flour
Salt
Talcum or baby powder
Granulated sugar
Stirrer
Step 1: Help your child form a big question before starting the experiment.
Step 2: Make a hypothesis for each substance. Perhaps the salt will dissolve because your child has watched you dissolve salt or sugar in water when cooking. Maybe the baby powder will not dissolve because of its powdery texture. Help your child write down his or her predictions.
Step 3: Scoop a teaspoon of each substance in the jars, only adding one substance per jar. Stir it up!
Step 4: Observe whether or not each substance dissolves and record the findings!
Your child will likely note that that sugar and salt dissolve, while the flour will partially dissolve, and the baby powder will remain intact. The grainy crystals of the sugar and salt are easily dissolved in water, but the dry, powdery substances are likely to clump up or remain at the bottom of the jar.
As you can see, the scientific method is easy to work into your child’s scientific experiments. Not only does it increase your child’s scientific learning and critical thinking skills, but it sparks curiosity and motivates kids as they learn to ask questions and prove their ideas! Get started today with the above ideas, and bring the scientific method home to your child during your next exciting science experiment
Ответ: