Equipment and Materials

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Equipment and Materials
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Materials and Equipment

• Each piece of equipment that we use in a science
  class has a specific purpose. This equipment was
  designed to help us receive the best data and
  observations.
• If we would use the wrong data then we are
  potentially putting ourselves in danger or
  messing up the results of the experiment

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Glassware for Handling liquids

• Erlenmeyer flask
• Used to mix liquids, its narrow mouth prevents
  splashing and lessens the dispersion of noxious
  fumes.
• Sometimes it is marked to make volume
  measurement, however these are approximate
  measurements.

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Glassware for Handling Liquids

• Test tubes
• Are used to mix, measure, or heat liquids.
• Test tubes are not usually marked with
  measurements, so they are used to make
  approximate measurements.

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Glassware for Handling liquids

• Beakers
• Used to mix and heat liquids. Like and
  Erlenmeyer Flask, they are not intended for
  accurate measurement.

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Glassware for Handling Liquids

• Eye dropper
• Used to dispense small measurements of liquids.

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Equipment for heating

• Bunsen burner
• Source of gas heat.

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Equipment for Heating

• Hot plate
• Source of electrical heat.

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Equipment for Heating

• Tongs
• Used to grasp heated material

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Equipment for Heating

• Tripod
• Holds glassware above a Bunsen burner

• Ring Stand
• Hold glassware above a Bunsen burner

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Equipment for Heating

• Wire Gauze
• Usually goes on tripod or ring stand to gold the
  glassware being heated.

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Equipment for Measuring Mass

• Triple Beam balance
• Used to determine the mass of heavier materials
  to the nearest gram.

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Equipment for Measuring Volume

• Graduated Cylinder
• Are marked with a scale for measurement
• They are used to accurately measure liquid volume.

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Equipment for Measuring Volume

• Pipets
• Used to measure small liquid volumes.
• Pipets are usually marked TD (to deliver).
• Is designed to deliver the exact volume marked on
  the side

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Equipment for Measuring Length

• Meter Stick
• Measures length and width

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Equipment for Measuring Length

• Caliper
• Used to measure the thickness or diameter of an
  object on a smaller scale than a ruler.
• The jaws of the caliper are closed on the
  object to be measured, then the distance between
  the jaws are read.
• Works best on firm, solid objects

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Observation Equipment

• Microscope
• Enables us to see things to small to see with the
  eye.
• 3 main components of the microscope are the arm,
  objectives, and the adjustment knobs.

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Observation Equipment

• Watch Glass
• Holding container or covering device.

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Observation Equipment

• Petri Dish
• Used to culture cells.
• Cell culture is a method of growing microscopic
  organisms.
• Have covers to enclose the cultured sample.

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Equipment Review

• Which of the following is used as a source of
  heat in a laboratory?
• A. Thermometer
• B. Bunsen Burner
• C. Thermostat
• D. Gasoline

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Equipment Review

• Which of the following is used as a source of
  heat in a laboratory?
• A. Thermometer
• B. Bunsen Burner
• C. Thermostat
• D. Gasoline

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Equipment Review

• Which has specific markings for measurement and
  is used to accurately measure liquid volume?
• A. Test tube
• B. Beaker
• C. Ruler
• D. Graduated Cylinder

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Equipment Review

• Which has specific markings for measurement and
  is used to accurately measure liquid volume?
• A. Test tube
• B. Beaker
• C. Ruler
• D. Graduated Cylinder

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Equipment Review

• Which of the following pieces of equipment is
  used to handle liquids it is not intended for
  accurate measurement?
• A. Beaker
• B. Test tube
• C. Erlenmeyer flask
• D. All of the above

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Equipment Review

• Which of the following pieces of equipment is
  used to handle liquids it is not intended for
  accurate measurement?
• A. Beaker
• B. Test tube
• C. Erlenmeyer flask
• D. All of the above

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Equipment Review

• If you were instructed to heat something on the
  Bunsen burner, what would upi ise to hold your
  container over the burner?
• A. A watch glass
• B. Gloved hands
• C. A piece of wire gauze held by a tripod
• D. A Petri dish

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Equipment Review

• If you were instructed to heat something on the
  Bunsen burner, what would upi ise to hold your
  container over the burner?
• A. A watch glass
• B. Gloved hands
• C. A piece of wire gauze held by a tripod
• D. A Petri dish

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Equipment Review

• What of the following should be measured with a
  caliper, rather than a meter stick?
• A. A length of a worm
• B. Width of a snail
• C. Length of a shark
• D. With of a worm

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Equipment Review

• What of the following should be measured with a
  caliper, rather than a meter stick?
• A. A length of a worm
• B. Width of a snail
• C. Length of a shark
• D. With of a worm

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Vocabulary for Flash Cards

• Balance
• Electronic Balance
• Graduated cylinder
• Metric ruler
• Scientific notation
• Triple-beam balance
• Volume
• Microscope

• Dichotomous Key
• Electrophoresis
• Indicator
• Magnification
• Stain
• Stereoscope
• Compound Light Microscope
• Mass