Term
| What is the International System of Units? |
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Definition
| A system of measurement based on the number 10. |
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Term
| Why do scientists use the International System of Units? |
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Definition
- makes sharing results among scientists easier.
- contains units that are based on the number 10.
- standardizes a method of recording observations. |
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Term
| A bacteria can be seen with __________. |
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Definition
| a compound light microscope. [image] |
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Term
| To measure the volume of a liquid, you would use a ____________. |
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Definition
| graduated cylinder. [image] |
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Term
| To measure the mass of a solid, you would use a ________________. |
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Definition
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Term
| To measure the length of an object, you would use a ___________. |
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Definition
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Term
| To measure temperature, you would use a ______________. |
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Definition
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Term
| When a scientist finds that a hypothesis is wrong, what should a scientist do? |
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Definition
| Try to find another explanation for what has been observed. |
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Term
| After concluding that your tests support your hypothesis, you should ______________. |
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Definition
| publish the results so that other scientists can learn from you. |
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Term
| Scientists try to design experiments that will clearly show whether a particular ____ was the cause of an outcome. |
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Definition
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Term
| In order to be certain about the conclusions of an experiment, scientists should _________________. |
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Definition
| repeat the same experiment many times. |
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Term
| A scientist wants to study the possible side effects of a new medicine, how should he/she set up this experiment? (how many groups? how much medicine? control group?) |
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Definition
| Include a control group that receives no medicine. |
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Term
| When researchers use the scientific method, can they repeat or switch the order of steps or do they need to keep them always exactly the same? Explain. |
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Definition
| Repeat or switch the order of steps as needed. |
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Term
| In a scientific experiment, a hypothesis that cannot be tested is always considered to be ____________. |
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Definition
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Term
| After forming a hypothesis, you should __________. |
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Definition
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Term
| In what kinds of ways can you analyze results? |
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Definition
- organizing your data into tables and graphs.
- doing calculations to learn more about your results. |
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Term
| After concluding that your tests support your hypothesis, you should ___________ |
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Definition
| publish the results so that other scientists can learn from you. |
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Term
| What do scientists use to answer a question or solve a problem? |
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Definition
- the scientific method.
- their imagination.
- their creativity. |
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Term
| When scientists find that a hypothesis is not supported by the tests they perform, they realize that _________. |
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Definition
| they have eliminated one possible factor. |
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Term
| If a tested hypothesis does not produce the expected results,_________. |
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Definition
| don't trash the results—it might lead to another discovery. |
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