Page 22 - Science Course 1 (Book 1)
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Mo. 1 - L2c What are Tools Used by Scientist?





                 Mo1-L2c      What are Tools Used by Scientist?  Microscopes, such as dissecting
                                                                 microscopes and compound light
               KEY CONCEPTS:                                     microscopes, enable you to
               1. What are some tools used by scientists?        observe small objects that you
                                                                 cannot observe with just your
               Let’s Begin                                       eyes.

               Scientific Tools

               Science journals are for recording descriptions,
               explanations, plans, and steps used in scientific                    A magnifying lens is a hand-held
               inquiry.                                                              lens that magnifies, or enlarges,
                                                                                             an image of an object.

                  ?                         PLAN                 To observe items using a com-

                                                                 pound light microscope, you must
                                                                 place it on a thin, rectangular
                                                                 piece of glass called a slide.


                A triple-beam balance or a digital balance is used  by
                scientists to measure mass.
                                                                                       Scientists use dissecting tool
                                                                                    such as scalpels and scissors, to
                                                                                         examine tissues, organs, or
                                                                                              prepared organisms.




                                                                    A pipette is a small glass or plastic
                       Definition    Measuring  Unit     Location   tube used to draw up and transfer
                                     tool                           liquids.

               Mass    The amount     Balance   g, kg    Not
                       of matter in                      changed
                       an object                         by                              pH paper is used to quickly
                                                         location                     estimate the acidity of a liquid
               Weight The amount of   Scale     Newton   Changed                                       substance.
                       gravitational            (N)      by
                       force acting on                   location
                       an object

               A thermometer measures
               the temperatures                                   Hot plates are used to heat
               of substances.                                     substances in the laboratory.


               Flasks, beakers, petri dishes, test tubes, and
               specimen jars are used as containers.
                                                                                      Scientists use stopwatches to
                                                                                     measure the time it takes for an
                                                                                                    event to occur.





               Graduated cylinders are used to                    A spring scale is used to measure the
               measure the volume of a liquid.                    weight or the amount of force applied to
               The unit of measure for liquid                     an object.
               volume is the liter (L) or milliliter
               (mL).

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