Science Quiz - Questions and Answers

Here are the questions and answers for the open book quiz:

1. An acute hazardous chemical: B - Shows it effect slowly
2. Acute hazardous chemicals show their reactions within: C - 48 hours
3. The lead compound contained in leaded gasoline is: A - Acutely poisonous
4. The symbol indicating a moderate explosive is: B - 7
5. The symbol indicating a moderate fire hazard is: B - 6
6. The symbol indicating a slight corrosive danger is: E - 4
7. The symbol indicating an extreme poison is: C - 9
8. The symbol indicating a moderate poison is: A - 5
9. The symbol indicating a low fire hazard is: D - 2
10. If the symbols and appear on a product key they indicate that the product is: A - Poisonous and flammable
11. An antidote is: C - A material that counteracts the effect of a hazardous chemical
12. Which of the following products contains an acid? A - Vinegar
13. Soaps and detergents help to remove oils from clothing because: A - They are able to form attractive forces with water and with oils
14. Compared to making suds in hard water, making suds in soft water requires: B - More soap
15. Hard water is called "hard" because it contains: A - High concentrations of dissolved substances
16. In which household situation below would you want to use a non-reactive chemical? A - Polishing brass
17. Symbol #1 above indicates: A - Compressed gas
18. Symbol #2 above indicates: C - Immediately, seriously toxic
19. Symbol #3 above indicates: D - Other toxic effects
20. Symbol #4 above indicates: E - Corrosive
21. Symbol #5 above indicates: D - Flammable & combustible
22. Symbol #6 above indicates: B - Oxidizer
23. Symbol #7 above indicates: A - Biohazard
24. Symbol #8 above indicates: E - Dangerously reactive

Lemon Battery

Today we made and tested a lemon battery. Two lemons connected to a voltmeter produced 1.9 volts. A diagram that I made using Paint is below:

Where and Why Science Accidents Occur: Main Points

The main points of the article posted here are:

• Overcrowding in science labs, especially for grade 8 and 9 students is generally not a good idea
• Students should be completely clear on the safety rules of the experiments that they are carrying out
• All teachers that are given a post in teaching any course that is related to science should be formally taught laboratory safety
• New science textbooks should be written so they explain laboratory safety clearly and concisely

I agree with the information in this report and also agree with the recommendations.

January 18th Update - IT11

For the past few days I have been doing miscellaneous projects until our regular teacher, Mr. Tilcock, returned. Sadly, while I was saving one of those miscellaneous assignments, my flash drive died. Maybe I can return it to a living state soon...

An index of some CSS/XML webpage examples

Today everyone in both classes IT11 and BCA11 were told to compile a web of their work. I luckily have some experience in designing web pages, so it didn't take me too long. Don't be surprised if some examples don't work, they shouldn't.

Click here to view the web.

James Mackenzie

CSS+XML booklet

Last week we received a booklet filled with CSS and XML code. Mr. Tilcock assigned the booklet to all of us in ICT11, telling us to do everything that was shown. Yesterday I finished all of the CSS exercises, so today I start XML.

Another Excel Command

Here is an Excel command for figuring out the average of a group of cells:

=AVERAGE(cellnum1:cellnum2)

Paste this into your Excel file somewhere, replacing cellnum1 with the first cell in your series and cellnum2 with your last number in the series.