Lab Instruments “All the world is a laboratory for the inquiring mind”

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Presentation transcript:

Lab Instruments “All the world is a laboratory for the inquiring mind”

Why is Important to Understand how to Use Instruments? SAFETY! ACCURACY!

Lab Etiquette Remain at your station unless you are getting supplies or help “Ask three then me” Record data as you go Leave the space as you found it Get checked out

METER STICK

Meter Stick Units – Meters When to use - When measuring the length of larger objects

Beaker

Beaker Used to measure the VOLUME of liquids Measured in ML Volume = how much space a substance takes up

Erlenmeyer Flask

Erlenmeyer Flask Similar to a beaker, but better for mixing liquids (units are ml, and also measures vol.) Can put a stopper in it

Graduated Cylinder

Graduated Cylinder The most accurate way to measure the volume of liquids Units = ml Read from the meniscus

What on Earth is a Meniscus? Always read the ml from the bottom of the curve of the water :

Test Tube

Test Tube Used for reactions during experiments Holds liquid after it has already been measured Clean at the end of the lab

Pipette

Pipette https://www.youtube.com/watch?v=J_XhKFspBo8 Show video from 25 seconds to 1:25

Triple Beam Balance Used to weigh solids Unit - grams

Timers Start, stop, lap, reset Units – seconds and minutes Round to two decimals

Thermometer Measure in degrees Celcius Do not press against the glass Allow time to settle

Goggles Wear when dealing with chemicals Keep them on when instructed

Microscope Very important in life science! Always carry with two hands