Science Vocabulary/tools-Teks Jm

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SCIENCE VOCABULARY

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telescope

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a tool used for viewing the planets, stars and other objects in outer space

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thermometer

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an instrument that measures temperature

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anemometer

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an instrument that measures wind speed

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bar graph

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a graph that lets you compare numbers quickly

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barometer

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an instrument that measures air pressure

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calorie

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a measure of amount of energy in a certain amount of food

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compass rose

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the symbol on a map that indicates direction

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decibal

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a unit used to measure loudness

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density

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a measure of how much mass there is in a given volume

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equator

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an imaginary line that runs around the Earth like a belt

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kilowatts

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thousands of watts; a measure of electric power

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line graph

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a graph that shows how data change over time

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longitude

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lines on a globe that run north and south

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latitude

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lines on a globe that run parallel to the equator

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newton

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a unit used to measure force

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pie graph

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a circle graph that shows part of a whole

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pulley

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one or more grooved wheels with a rope or chain wrapped around it to make lifting weights easier

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screw

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an inclined plane wrapped around a cylinder

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speed

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a measure of how far an object has moved in a certain amount of time

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temperature

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the measure of how hot or cold something is

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volume

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a measure of how much space something takes up; also a measure of how loud something is

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watt

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a measure of the electric power of an object

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spring scale

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an instrument to measure gravitational pull on an object

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stopwatch

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an instrument used for precise timing

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graduated cylinder

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a tool used to measure volume of liquids

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compass

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a tool used to determine direction

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hand lens

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magnifying glass used to view objects up close

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microscope

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a tool used to enlarge or magnify the sample being observed

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balance

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a tool used to measure the mass in an object

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waft

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the act of bringing an oder to your nose with a cupped hand

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prism

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an instrument that shows how light is reflected

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beaker

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equipment that is used to contain liquid

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pie graph

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a graph used to show percentage

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hypothesis

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an educated guess about how things will work that includes an explantion of why it does so

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variable

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something that may or does change

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conclusion

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statements that you think are true based on experimental results

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data

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information collected during a science investigation

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analyze

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to look at in detail

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scientific method

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steps scientists follow to answer questions

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experiment

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a scientific investigation

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control

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to test or verify in a similar experiment

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trial

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test; proof

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valid

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true and reasonable

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investigation

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an inquiry; a careful investigation

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evidence

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that which tends to prove or disprove something

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process

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an action; a systematic step

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controlled (variable)

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variable that does not change

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dependent (variable)

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variable in an experiment that measures in order to compare two groups

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independent (variable)

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variable changed on purpose to observe the response of another variable