Daily Science (pg. 4) Go through the bucket on your station and see how many things you can identify.

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Presentation transcript:

Daily Science (pg. 4) Go through the bucket on your station and see how many things you can identify.

Lab Map (page 7) Sketch a map of the lab and label the following: First aid kit Fire extinguisher Fire blanket Cabinets (volumetric flasks, funnels, graduated cylinders, beakers, Erlenmeyer flasks) Sinks/ gas outlets Aprons Goggles Broken glass box Eye wash

Mechanics of measurement (pg. 9) Science is only as good as the instrument that measures it

Accuracy vs. Precision Accuracy- how close you are to the true measurement. Precision- how close your measurements are to each other.

How to read a scaled device Step 1: Determine the intervals used on the scale. (Is it counting by ones, tens, fives, etc.?) Step 2: Record the measurement and then record one more number. The last number is always uncertain, but its in the ball park Recording Measurement Worksheet

How would you read this? 1. What is it counting by? 2. What it the measurement? 3. What is the uncertainty number? Ones

Graduated cylinder Read at the bottom of the meniscus Always read the bottom of the meniscus at eye level.

Thermometers

How to use a mass scale Make sure it is on and the lid is UP. Zero the balance before you mass NEVER put chemicals directly on the plate

Measurements Lab