NAME:______

INTRODUCTION TO SCIENCE

  • - the of findinganswers to questions about the , and the collective already learned.
  • – a philosophy weighing the of the science versus the potential

to society or the natural world.

  • – a variety of used to answer scientific questions.
  • The is one such strategy that uses a number ofsteps used to answer scientific questions.
  • Identify theto be solved.
  • State the (educated guess) – based on and background .
  • the hypothesis (conduct the or research).
  • - changeable factor in an experiment.
  • variable - is under the experimenter’s control and change in another variable.
  • variable – is being in response to the independent variable.
  • - sample where the variable is changed.
  • – variable that is kept the for basis of comparison.
  • Collect and analyze the .
  • data – show topics or categories
  • data – show quantities (numbers)
  • There are 3 main types of that are used to analyze data.
  • – also known as a chart
  • – data is graphed along the axis.
  • - data is graphed along the axis.
  • Make once results have been and

by other scientists, theories and laws can be created (based on the evidence).

  • A explains why something happens.
  • A states what will happen under certain conditions.

system – the predominant measuring and units system with the exception of the .

  • for length
  • for mass
  • for spatial or solid volume
  • for liquid volume (1cubic centimeter = )
  • (degrees) for temperature
  • / for density (mass / volume)

The metric system is based on the system (factors of ).

= kilo (k)

= hecto (h)

= deka (da)

= base unit

= deci (d)

= centi (c)

= milli (m)

Metric System and Using the Metric Ladder

Below is the standard "metric ladder". Each box shows a metric prefix and its size in relation to thebase unit (meter, gram or Liter). Underlined letters are used to indicate how the prefixes and baseunits are abbreviated. The metric ladder is helpful when making conversions for any of the followingbase units (meter, gram and Liter).

Using the Metric Ladder

Try these steps each and every time you want to use the metric ladder.

1. Find the spot (unit) on the ladder that has the same prefix as the measurement you are

with.

2. Locate the spot on the ladder that you want to convert your number .

3. Count the of steps you must move on the ladder to make your conversion.

4. Move the decimal in your original number this same number of steps and in the same

(don't forget the Base step).