Chemistry 9-10-20 Using Density & Conversion Factors

CHEMISTRY – Great work with some of the extra large problems today. I’ve splice together some of the classes, so this vodcast has #14 – converting from mm3 to mL, and #16 – how many glasses of water.

This is a pic of some “high density” koi that I saw in Hawaii (at the Dole Pineapple Plantation, of all places!). Great review on density problems today, and more! Remember, in chemistry we use math as a tool, therefore we might work problems a little differently in chemistry than you do in your math class.

When working these problems, don’t forget to follow the problem solving steps we discussed today:

  • Analyze – write down what you’re given and what you’re looking for
  • Plan – write a formula where you isolate the unknown on one side by itself
  • Compute – plug in your data, numbers and units; then cancel the units, and if they cancel correctly, go on to the calculator. Be sure and give your answer what the correct units.
  • Evaluate – does your answer make sense, have you used the correct units, do you have the correct sig figs?

Hon Chemistry: Science In the News Assignment

HON CHEMISTRY: How can chemistry, physics – or any other type of science, technology, engineering, and mathematics (STEM) be important to your everyday life? TONS of ways, and this year we’ll be using Science In the News to research just that!

Click here for a link to the assignment – or you can also find it under the Worksheet/Handouts tab. Science in the New Assignment – REMOTE

IMPORTANT guidelines for the assignment:

  • Choose a STEM article on websites like or
  • Make sure you pick an article you find interesting and that you understand!!
  • Make sure you pick an article that you can use to answer the questions on the Science In the News sheet. If there are questions you cannot answer with the type of article you have – pick another article!!!
  • The SItN assignment must be typed . If you type, you will have to scan in your illustration.
  • You must copy/paste the actual article you used at the end of the questions you answer. Be sure and start a new page with the article. Don’t forget to highlight your article!!
  • Save/scan your assignment as a PDF. Be sure and name the file correctly.
  • Turn in the assignment to both your Google Drive Shared Folder and