- 77 Views
- Uploaded on
- Presentation posted in: General

Daily Science (pg. 4)

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

- Go through the bucket on your station and see how many things you can identify.

- 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- how close you are to the ‘true’ measurement.
- Precision- how close your measurements are to each other.

- 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

1. What is it counting by?

Ones

2. What it the measurement?

23

3. What is the uncertainty number?

23.0

Always read the bottom of the meniscus at eye level.

Read at the bottom of the meniscus

- Make sure it is on and the lid is UP.
- Zero the balance before you mass
- NEVER put chemicals directly on the plate