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25 Cards in this Set
- Front
- Back
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What are science inquiry tools used for?
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Scientists use tools to measure and observe objects
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What are four tools you can use to measure objects?
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tapemeasure, ruler, measuring cup, spring scale
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Define microscope
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A microscope is a tool that sees smaller objects larger
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What does magnify mean?
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to make things look bigger
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What did Van Leeuwenhoek see with with his microscope?
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He saw microscopic organisms on a needle
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Who was the first person to use the word cell to refer to the units found in living things?
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Robert Hooke
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What are the main parts of the microscope?
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The base, eyepiece, stage, nosepiece, adjustment knob
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How does a thermometer work?
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How hot or cold the temperature is
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Define balance
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Balance is a tool that measures the amount of mass of an object
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In what units is mass measered?
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In grams or kilograms
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In what units is weight measured?
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onces, pounds
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What does a balance measure?
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The amount of matter in an object.
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What does a spring scale measure?
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It measures forces such as weight and friction
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What are four ways to keep safe in our lab?
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Wear safety goggles, watch for electrical currents, read caution signs, make sure your hands are dry.
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Define investigation
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A procedure that is carried out to gather data about an object.
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Define Inquiry?
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Is an organized way to gather information and answer questions.
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What are inquiry skills used for?
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Answering questions.
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What inquiry skills would you use to get answers to your questions?
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Compare the length of different objests, collect, display and interpret data as numbers
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Define Experiment
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Is a procedure you carry out under controlled conditions to test a hypothesis.
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What is the sequence of inquiry skills you would use before you communicate the results of an experiment?
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First, plan and conduct a simple investigation, then hypothesize. Then experiment using controled variables. Finally draw conclusions.
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What dod you do when you draw a conclusion at the end of an experimemt?
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Write down if your hypothesis is right or wrong
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Why do you have to control variables in an experiment?
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so you don't get mixed up with the results.
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How do models help an investigation?
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So you don't use the real thing. Also to save money and time.
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Define Scientific Method?
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The series of steps a scientist uses.
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What are the steps of the scientific methods?
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Observe, ask questions, hypothesize, plan an experiment, conduct an experiment, draw conclusions and communicate
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