Bell Work Identify at least one proper lab safety procedure and one mistake in the picture on the left. Write your answers in your composition notebook.
RAPID FIRE! Triple-Beam Balance
RAPID FIRE! Test Tube
RAPID FIRE! Petri Dish
RAPID FIRE! Graduated Cylinder
RAPID FIRE! Beaker
RAPID FIRE! Dropper
RAPID FIRE! Tongs
RAPID FIRE! Flask
RAPID FIRE! Stopwatch
RAPID FIRE! Thermometer
This Week’s Goals… • I can identify, select, and use proper lab tools. • I can analyze date collected throughout an investigation.
Graduated Cylinder Measurements:Measuring Volume Goal: Use a graduated cylinder to find the volume of liquids.
Volume—the amount of space an object takes up What is volume?
L•W•H Finding the volume of a regular solid…
V = l x w x h Today…we are going to focus on finding the volume of liquids.
A. Grams B. Meters C. Millimeters D. Milliliters Graduated cylinders are marked in units of
Let’s practice… What is the volume? Meniscus—curvature in the surface of the liquid
Let’s practice… What is the volume? 35 mL
Let’s practice… What is the volume? 73 mL
Let’s practice… What is the volume? 13 mL
Colored Water Lab Follow the directions very carefully!
Today’s Clean Up: • Pour out the liquid in each of your test tubes. • You might have to rinse out the test tubes if there’s color remaining in them. • Put them back in alphabetical order. • DO NOT POUR OUT THE BEAKERS! • Rinse out any lab tool that needs it. • Push in your stool and sit down. • GLUE IN BOTH HANDOUTS!!!!!
Once you are finished… • Pick up a Graduated Cylinder Practice WS from the front table. • Glue into your composition book. • Complete individually at your desk.