Data gathering and experimental technique
Awareness test
Data gathering and experimental technique
Basic scientific skillsObservation used in gathering data about
an object or event, which is usually obtained through your
senses.Qualitative or quantitative.sensesNumbers and
measurement
Examples:Describing the hair of your seatmate as black or
straight.Describing the shape of the football field.
communicatingEnables you to describe an action, event, or object
through words or graphical symbols.example:
Describing the number of your classmate with straight hair,
curly hair, or wavy hair through words, table, and graphs.
measuringAllows you to use a certain measuring tool at a
corresponding situation.Using a ruler to measure the length of your
classmates hair
ClassifyRefers to grouping or ordering of object of objects or
events into categories based on properties , criteria or existing
relationship.Example:
Grouping your classmate according to hair style ----one group
for straight hair, one for curly hair, and one for wavy hair.
inferringmAking an educated guess or a hypothesis based on a
previously known fact or information.Example:
Saying that your seatmates hair is black because her parents
hair are also black
PredictingAbility to state an outcome of a future event based on
a pattern of evidence.Example:
Predicting the ratio of straight hair and curly students in the
other classrooms based on the data from your classroom.
The international system units
Measuring various quantities
massPertains to the amount of matter a certain object
contains.Small quantities, you can use the unit gram (g) in
expressing mass.mass can measure using either beam balance or an
electronic balance.
Beam balanceElectronic balance
lengthIt is the distance between two specified points.The si
unit for length is meter (m).Centimeter (cm), Kilometer (kl),
inches (in), foot (ft), and mile (mi).Common laboratory apparatus
are meter stick and metric ruler.
Meter stickMetric ruler
temperatureRefers to the hottest or coldness of a body or an
environment.Si unit is kelvin (k), however in our country, the
common is Celsius (C )Common apparatus is thermometer.
Thermometer
timeMeasure of duration of events and interval between them.Si
unit is second (s).Stop watch is used to measure time.
Digital Analog
volumeThe amount of space occupied by an object.The si unit for
volume is cubic meter(m3).Cubic centimeter (cm3), milileter (ml),
and , liter (l).apparatus are beaker, graduated cylinder, pipette,
and volumetric flask.
Graduated cylinderVolumetric flask Pipette Beaker
Lower meniscusUpper meniscus
