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.

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Presentation transcript:

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.

Graduated Cylinder—tool used to measure the volume of a liquid

Volume—the amount of space an object takes up What is volume? Volume—the amount of space an object takes up

Finding the volume of a regular solid… L•W•H

V = l x w x h Today…we are going to focus on finding the volume of liquids.

Graduated cylinders are marked in units of A. Grams B. Meters C. Millimeters D. Milliliters

Meniscus—curvature in the surface of the liquid 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

Follow the directions very carefully! Colored Water Lab Follow the directions very carefully!

Today’s Clean Up: GLUE IN BOTH HANDOUTS!!!!! 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.