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Definition
Scientific investigation begins with an observation
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Term
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| The use of scientific methods to test a hypothesis. Important way to find reliable answers. |
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| Scientists need to do 5 things what are they? |
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Definition
1. Observe
2. Collect information
3. Test ideas
4. Make predictions
5. Share information with other scientists |
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| In order to investigate scientists need to use? |
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Definition
- Controlled experiments
- models
- surveys
- sampling
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Definition
| Objects or things that represent other things. |
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Term
| Models are used to study? |
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| Models are used to study things that are very large, have many parts or are difficult to observe directly. |
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Definition
| Questionnaries given to a number of people whose answers are recorded and analyzed by the scientist. |
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Definition
| Scientists examine random individuals from a population. |
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Definition
| Organized ways to answer questions and solve problems. |
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| State the Scientific Methods |
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Definition
- ask a question
- state your hypothesis
- identify and control variables
- make a plan
- test your hypothesis
- collect, record, and interpet your observations
- state your conculsion
- do repeated trials
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Definition
| Something that can change in a test. |
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| Changes when an independent variable changes. |
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| Should only test one variable at a time. |
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| Standard agianst wich change is measured. |
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Definition
| Step-by-Step instructions for completing a task. |
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Definition
| Information scientist collect to use to make a prediction or draw a conclusion. Must be collected consistently and recorded. |
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Definition
| The ability to consistently repeat a measurement. |
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Definition
| The ability to make a measurement that is close to the actual value as possible. |
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| Data measured with precision and accuracy. |
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Definition
| Tools are used to collect data and help to measure things and gather information. |
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Term
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Definition
| During an experience it is important to be safe for yourself and others around you. |
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Term
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Definition
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Listen to teacher instructions.
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ask questions.
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Tie hair back.
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avoid loose clothing.
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waer safety goggles when needed.
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never taste or smell anything unless told to by teacher.
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read the activity before you begin.
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keep plants and animals safe.
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handle all sharp objects and all equipment carefully.
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Definition
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| Use graphs, charts, and graphics. Once data is organized in a table, it can be displayed using a graph. |
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Definition
| Look at all information collected by using tools and observations, measure and estimate. |
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Definition
| The average, adding all the data and dividing by the number of data. |
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Definition
The middle:
half of data are lower than the median and half are higher |
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| The value that occurs the most often. |
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| Difference betweeen the largest and smallest values. |
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| What does science deal with? |
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Definition
Observations and facts.
Data and observations are facts. |
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Term
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Definition
Scientists use facts ans observations to draw conclusions and make inferences.
Inference is conclusion based on an observation. |
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