Tag Archives: unit conversions

Unit conversions and scientific graphs

Sorry I can’t be in class today, kids – I know you’re disappointed to have a cover teacher – so here’s the low-down on what you need to do while I’m out:

  1. Review the homework problems to make sure you have the correct answers and understand the process. The process is more important than the answers.
  2. Watch the dimensional analysis video linked here, then complete the quiz on that website to verify you understand how to do dimensional analysis.
  3. Go through my zombie presentation – yes, zombies do in fact know how to do dimensional analysis – and work all the practice problems in the presentation. You may do this with a partner if you want, and I’ll go over the answers with you next lesson.
  4. Review the document titled, “How to create graphs for science” and create a bullet-point list of all the required parts of a scientific graph. I’ll check this list as another homework check next lesson.

Here’s the zombie presentation:

Here’s the “How to create graphs for science” document in a viewing window:

Dimensional Analysis

Here are some tools to help you through the Measurements in Science homework assignment.

The video linked here methodically takes you through the dimensional analysis process, and it includes a quiz so that you can check your understanding.

This page has a lot of practice problems worked out for you, and it explains the process in easy-to-understand language.

Here’s the presentation we’ll use in class. Watch it. Study it. Master it.

Oh, and here’s another link that may be helpful. From Texas A+M University.

 

Grade 9 Science Skills Test Coming Up!

Your first unit test is rapidly approaching! It will be a 5-part test on Friday 6 September (9A and 9C) and Monday 9 September (9B). Here are the 5 sections of the test:

  1. Common equipment – identify by name and use
  2. Lab safety rules – explain them
  3. Unit conversion and dimensional analysis – like the HW assignment
  4. Demonstrate use of graduated cylinder, electronic balance, and Bunsen burner
  5. Create a data table and a graph from given raw data

Please note that part 4 is a demonstration stage. Each student will be called to the central demo table, where I will observe your skills using a graduated cylinder, electronic balance, and Bunsen burner. You will have exactly 2 minutes to accomplish 3 tasks with these tools, so please make sure you are comfortable using them!

The test will be scored under Criterion C (Scientific Knowledge) and Criterion F (Attitudes in Science).