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
When people ask questions, make observations, and use other methods to gather data to answer a question, they are doing an _______________.
investigation or experiment
What is one example of a model?
a drawing, a computer animation, a smaller or larger version of the object
What do we call a model that is flat (only has length and width)?
a two-dimensional model
When people collect information by using their five senses, they make an __________.
observation
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?
you are making an inference
What should you do if the evidence in an investigation does not support your original hypothesis?
Use your evidence to form a new hypothesis
If you want to measure temperature, you would use a tool called a _______________.
thermometer
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.
What is one way you can test a hypothesis?
conduct an investigation or an experiment
What do scientists do to research a subject?
read a book, look for information on the internet, communicate with other scientists, etc.
What tool makes very small objects look bigger?
a microscope
What is one tool you could use to measure length?
ruler, tape measure, yard stick, etc.
What do we call a model that has length, width, and height (like a box)?
a three-dimensional model
A tool used to measure the mass of an object is a _________.
pan balance or a spring scale
Someone who makes a statement that explains an observation is making an ____________.
inference
What tool would you use to look at the stars?
telescope
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