NAME:______
LAB TOOLS WORKSHOP
Directions:
For each measurement tool, write the name, what units it measures in and use it to measure one thing at the table.
**You may work together, but everyone needs to record the measurements and take turns using the each tool.
STATION 1: Triple-Beam Balance
What does it measure?
Unit of measurement:
Explain how to use a triple-beam balance:
Item you are measuring: (Pencil, Book, Your choice item ______)
Measurement:
Pencil:
Book:
Your Choice Item:
STATION 2: Graduated Cylinder
What does it measure?
Unit of measurement:
Measurement (check the meniscus):
What is a meniscus?
DIRECTIONS: Put an item into the graduated cylinder and determine the water displacement (how much did the water go up?) to find the volume of the item.
Item you are measuring: MARBLE
Volume of item (Water displacement):
In your own words, explain how to find the volume of an irregular object? (water displacement)
STATION 3: Meter Stick
What does it measure?
Unit of measurement:
Measurement Item: BIN/BASKET
Measurement:
Measurement Item: TABLE LENGTH
Measurement:
Apparatus / Description / Use / Name/ Glass
Common Sizes:
100, 250, 400, & 1000 mL / As a container, cup
Stirring, Mixing, Pouring, Heating
/ Glass
Usually marked with a milliliter (mL) scale / To measure volume
/ Glass
Common Sizes: 125, 250, 500 ml / May be heated / a.
b. ROUND BOTTOM FLASK
/ Glass
Several Sizes / Many uses: Can be heated
Mixing/Watching reactions
/ Wood, metal, plastic / To hold test tubes upright
/ Metal
Clamp with a spring handle / Used to hold a test tube
/ Metal / To pick up and hold items
/ Glass / Used to collect/add specific volumes of liquids
Used for suction to pull liquids into the apparatus
/ 10 cm ______
Used to measure length
Divided into cm and mm divisions / To measure length
/ Wire screen with ceramic fibered center / To spread the heat of a flame
Rests on the ring for the ring stand
/ Metal heating device connected to gas outlet with rubber tubing / To heat chemicals in beakers or test tubes
/ Metal rod upright, heavy base / A support with many uses
/ Heavy porcelain
Dish with grinder / To grind chemicals to a powder
/ Porcelain dish / As a container for small amounts of liquid being evaporated
/ 3 metal bars with riders for 100s, 10s, and 1s measurement / Used to find the mass in grams of an object
/ Digital scale, precise to the thousandths of a gram / Used to find the mass in grams of an object
/ Usually metal or plastic with a hook and a metal spring / Finds the force in (N)
/ Electric device often with a heat and stirring controls / Used to heat substances in glass or metal containers
/ Glass or plastic with lid / Used to collect specimen or hold agar for growing specimen