When people collect information by using their five senses, they make an __________.
observation
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A tool used to measure the mass of an object is a _________.
pan balance or a spring scale
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When people ask questions, make observations, and use other methods to gather data to answer a question, they are doing an _______________.
investigation or experiment
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Someone who makes a statement that explains an observation is making an ____________.
inference
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If you want to measure the pull of a force, such as the force of gravity, you would use a tool called a ___________.
spring scale
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If you want to measure temperature, you would use a tool called a _______________.
thermometer
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What tool makes very small objects look bigger?
a microscope
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What tool would you use to look at the stars?
telescope
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What is one tool you could use to measure length?
ruler, tape measure, yard stick, etc.
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What do scientists do to research a subject?
read a book, look for information on the internet, communicate with other scientists, etc.
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What do we call a model that is flat (only has length and width)?
a two-dimensional model
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What do we call a model that has length, width, and height (like a box)?
a three-dimensional model
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What should you do if the evidence in an investigation does not support your original hypothesis?
Use your evidence to form a new hypothesis
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Why do scientists use models?
Because they are studying something that is difficult to study. It may be too big, too small, or too far away to study so a model helps them learn about it.
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What is one example of a model?
a drawing, a computer animation, a smaller or larger version of the object
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If you see the sky is dark and the wind is blowing and you decide a storm is coming. What science skill are you using?
