Children Of Blood And Bone Novel Study

For english we are doing a novel study on "Children Of Blood And Bone" by Tomi Adeyemi and after reading certain chapters we are to write our thoughts on a quote from the book.

Do note this is subject to change as we read more of the book.

Electricity in TV's

In science we are starting the topic of electricity and have been told to research an item that we used in the school holiday. I choose the TV!

Old TV: A beam of electrons is generated on a filament heated by electricity. A positively charged glass screen attracts the electrons. The screen is coated with chemicals (phosphors) that light up when an electron hits it. Sweeping the beam of electrons over the entire screen (with directing magnets) really quickly lights up the whole screen.

New TV: No beam of electrons, no magnets. Each tiny spot of light that makes up the picture is an actual little solid state light bulb. Rows and columns of these tiny LED’s are scanned one after another. This makes a more efficient TV.

Metal Gases

In science we put metals in acids and bases to see the gases they produced with the help of fire.

The first gas tested for was hydrogen doing the pop test, a burning splint inserted into a test tube full of hydrogen to produce a pop sound. By adding a strip of magnesium to a test tube containing acid and holding a bigger boiling tube over top you can collect hydrogen to pop. But note the chemical reaction in the test tube will heat up.

The second was oxygen, adding magnesium dioxide to hydrogen peroxide, a base, created oxygen. The oxygen was tested for by placing a recently blown out splint in the test tube to see if it would relight.

And finally third was carbon dioxide in what i like to call the smother test. Adding together acid and a metal carbonate will produce carbon dioxide, which can be tested by inserting a burning splint. If the splint goes out you have carbon dioxide, it smothers flames and is used in fire extinguishers.