How to Properly Measure Liquid in a Test Tube By Josh Fortin

Where to get Materials Test Tube Test Tube There are Test Tubes in the back of the room in the closet labeled Test Tubes Test Tube Rack Test Tube Rack These racks are in the same closet. It is labeled Test Tubes Beaker Beaker Beakers are in the closet found in the back of the room labeled Beakers Liquid Liquid Water comes from sink if in need of water or use a liquid chemical from teacher Protective Goggles Protective Goggles These are to the left of the classroom in a white sterilization cabinet. Gloves Gloves These will be provided by the teacher if needed.

Pouring into Test Tube To pour a liquid into a test tube first put the liquid in a beaker. These have a formed lip on the rim to create an easier way of passing the water. In some cases, you will need a funnel to omit spilling of the product. Measurements are all done in milliliters (mL) If using of harmful chemicals, use gloves, protective goggles, and do not sniff the liquid. On oppropriate wear, please refer to Amanda C.’s poster.

Measuring Out Your Liquid There is a specific way to measure a Test Tube. If looking at it from the wrong angle, your measurement will be off. To get the right angle, place your eyes parallel with the line of the liquid in the tube and at the same level. There is a slight curve in the liquid set in this tube. This is normal. Measure from the bottom of that curve.

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