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Regents Review Day 02Laboratory Skills

Measurements Review

• Multiply cm by 10 to get mm (ex. 7cm x 10 = 70mm)

• Measure the volume of liquids with a graduated cylinder.

• Measure liquids from the middle of the meniscus (curve).

Measurements Practice

Measurements Practice

Measurements Practice

Measurements Practice

Measurements Practice

Microscope

• Start on low power because it has a larger field of vision, then zoom in to the center of the field with high power.

Microscope

• Coarse adjustment – brings the image into focus

• Fine adjustment – sharpens the image

Microscope

• Diaphragm – lets in more light and makes the image brighter

• Total magnification = eyepiece (ocular) x objective

Lab Safety

• Wear goggles• Wear gloves• Do not drink

chemicals• Handle chemicals

and glass with care• Do not touch hot

objects or fire

Homework #35

• R.B. p 162-163, #1, 3, 9, 11 (full answers only)