Science Electricity

In the holidays I used a TV this is how it uses electricity:

In A New TV Each tiny spot of light that makes up the picture is a little light bulb. Rows and columns of these tiny LED’s are scanned one after another. This is a very efficient TV, no heat is generated to make a beam of electrons or powerful magnets for direction like an old TV.

science

In science we used fire to test for the gases produced when you put metals in acids and bases .

The first test was for hydrogen using 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.

The second test was for 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.

The third and final test was for carbon dioxide, Adding together an 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.

Making Copper Sulfate Crystals

Crystals

In science yesterday we made copper sulfate crystals. Here is the method we used 

1. Add 20 ml of sulfuric acid, into a 100 ml beaker. heat the acid to 70o c. Turn off the Bunsen burner

2. once heated, use a spatula to add pee-size portions of copper oxide. to the beaker. stir for 30 seconds.

3. repeat step two, till no more will devolve. allow beaker to cool

4. fold the filter paper and place it into the funnel. place the funnel into the second beaker. 

5. make sure the beaker is cool enough to hold the top. the contents should still be hot. 

6. gently swirl the contents of the beaker to mix, and then poor into the filter paper in the funnel. allow to filter though

7. rinse your beaker you used to heat up the mixture previously, and place it back on tripod filled with 50-60 ml of water

8. place the evaporating basin on top of the beaker and carefully poor some solution from the beaker into the basin.

9. gently heat the beaker until the solution is reduced by half.

10. leave the evaporating basin to cool. once cool, move to the evaporating basin to a warm place where it will not be disturbed. observe for the next few days, blue copper sulfate should form 

English

In English today we worked in groups i was in a group with Michaela and Kaycee i learned that how to write a SEXXY paragraph something that i could do better is work more as a group.

english shots gifs

Sci oil of wintergreen

In sci we attempted to make to make "Oil of Wintergreen" and ...... failed anyway 

To start with, we added 5 ml of methanol in to a boiling tube, and added 1 ml of salicylic acid. We heated 250ish ml of water over a bunsen burner,  until it was 70ish degrees. We added 3 drops of Sulfuric acid before putting the boiling tube in to the water. We let the Methanol boil off, and we got a  brown liquid, not the crystals we wanted.  

It instead of make little crystals we made a brown liquid like thing.

It should have looked like small little crystals.

Maybe next time we should add more or less of the ingredients.

Back to PE

back to school.

• How are you feeling about being back? bad
• What are some things that you did for exercise/activity for lockdown? i have a treadmill at home.
• Any work for PE completed? Why? Why not? some