Lab Safety | Lab Safety terms | The Scientific Method | Observations and Inferences | Review from last year |
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Put your hair up or wear a hair net
What should you do if you have long hair?
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Able to catch on fire
What does flammable mean?
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An educated guess
What is a hypothesis? Give an example.
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Observation - a fact that you can tell with your five senses or measure with a tool like a ruler.
Inference - a plausible explanation for an inference
What are observation and inference?
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anything that can change or be changed in an experiment
What is a variable?
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keep your work station tidy and wear gloves
What are 2 things/strategies that you use to avoid cross-contamination and to stay safe?
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When you are heating up a test tube. Special tools that allow you to move a test tube without touching it. Special gloves that can withstand heat.
What are tongs and heat protective gloves and when would you use them?
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It is the step-by-step process of how you try and see if your hypothesis is correct. It includes a list of materials and the procedure that is followed.
What does the term experiment mean?
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When you describe the object or activity you are observing using your 5 senses.
What is a qualitative observation? Give an example
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Variables that remain the same in an experiment so that it can be fair
What is a control variable?
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Go to the eye wash station and rinse it out immediately.
What should you do if you feel that something got in your eyes?
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A place where you can discard substances that are unsafe to breathe in.
What is a fume hood?
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During the experiment, you need to watch and see what happens. This is really important because this is how you will collect data (information gained from the experiment) Record your data and take notes.
What does it mean to observe and record?
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When you use a measurement tool to observe something.
What is a quantitative observation? Give an example
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The variable that is changed in an experiment on purpose. It is like the cause of an experiment.
What is an independent variable?
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keep your hair up, wear close-toed shoes, wear glasses or safety goggles, wear an apron, and know the safety protocols if there is an emergency.
What 5 things do you do as a scientist to keep yourself safe when working in the lab?
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A tool that is used to see items that are very small. You need to move it with two hands and keep the cord away from the water.
What is a microscope and how do you move it?
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Look over your data and make a table or graph to help you organize it for others to see.
What does it mean to analyze your data?
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encyclopedia, atlas, maps, dictionaries, almanacs (yearly calendars that predict things like weather, tides, when the sun will set, etc.) videos, images, interviews, artifacts
Scientists ask questions. They see, infer, and wonder. What are 7 resources can they use to find out more information about a topic?
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A variable that changes because of the independent variable. This variable is dependent on the independent variable. It is the "effect: of the independent variable.
What is a dependent variable?
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Wear gloves, don't taste or smell chemicals, read labels, don't take chemicals out of the lab, properly close them and dispose of them.
What are 5 things that you should do when using chemicals?
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A fire extinguisher is a special tool that you spray to put out a fire. A fire blanket is also used to put out a fire.
What are a fire extinguisher and a fire blanket? When would they both be used?
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When you share your data and decide if your hypothesis is correct. It is where you explain what happened and what you might change in the experiment.
What is a conclusion in the scientific method?
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A summary of a research article helps to give you background before an experiment, helps you to support your claim when you write about your experiment, and helps you to create a testable question (hypothesis).
Source, Title, Author, Right verb, Topic
Why do you need to know how to summarize an article and what does STArt stand for?
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Qualitative data is descriptive and used the 5 senses. You can't measure this type of data. Quantitative data can be recorded with numbers and measured.
What is the difference between qualitative data and quantitative data? Tip: think about how these terms are used when you learned about observations
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