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Measuring in Chemistry labs. “ WHAT DO YOU NEED TO KNOW? ” stuff to get good results. Measuring techniques…. Things we measure in chemistry are mass length temperature volume. “ WHAT DO YOU NEED TO KNOW? ” stuff to get good results. Measuring techniques…. Mass =

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What do you need to know stuff to get good results
WHAT DO YOU NEED TO KNOW?” stuff to get good results

Measuring techniques…

Things we measure in chemistry are mass

  • length

  • temperature

  • volume


What do you need to know stuff to get good results1
WHAT DO YOU NEED TO KNOW?” stuff to get good results

Measuring techniques…

Mass =

measured with an electronic balance

use the metric system (grams)


What do you need to know stuff to get good results2
WHAT DO YOU NEED TO KNOW?” stuff to get good results

Measuring techniques…

Length= measured with a ruler. We use the metric system (cm)


What do you need to know stuff to get good results3
WHAT DO YOU NEED TO KNOW?” stuff to get good results

Measuring techniques…

When the measurement is EXACTLY on the line = you have to add a zero.

For example 3.0 cm means it is exactly on the 3 line of the ruler


What do you need to know stuff to get good results4
WHAT DO YOU NEED TO KNOW?” stuff to get good results

Measuring techniques…

Temperature= measured with a thermometer

  • use the metric system (oC)


What do you need to know stuff to get good results5
WHAT DO YOU NEED TO KNOW?” stuff to get good results

Measuring techniques…

Volume of a cube =

  • measured with a ruler

  • use the metric system (cm)

  • use L X W X H


What do you need to know stuff to get good results6
WHAT DO YOU NEED TO KNOW?” stuff to get good results

Measuring techniques…

Volume of a liquid=

  • measured with a graduated cylinder

  • use the metric system (mL)

  • measure the bottom of the curve (meniscus)!


What do you need to know stuff to get good results7
WHAT DO YOU NEED TO KNOW?” stuff to get good results

Observing techniques…

We use 4 of our senses in the lab

  • Sight

  • Smell

  • Sound

  • Touch(the container… not the chemical!)


What do you need to know stuff to get good results8
WHAT DO YOU NEED TO KNOW?” stuff to get good results

Observing techniques…

  • Examples of things you can observe

  • with your eyes are…

  • with your nose are…

  • with your ears are…

  • with your hands are…