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Thursday, 31 May 2018

Acid carbonate+ Carbonate --------- Salt+Water+Carbon dioxide expirement

Equipment:

  • 50g of sugar 
  • 1 tablespoon of golden syrup
  • 1/2 teaspoon of bicarbonate soda   
  • 1/2 tablespoon of water
Method:

  • Put the ingredients except for the bicarbonate soda into a saucepan and place on a low heat
  • Stir until all the sugar has dissolved. Raise the heat slightly so that it bubbles, and stir occasionally until you cannot feel any sugar at the bottom of the pan
  • Take off heat
  • Add bicornate of soda and stir!
  • Watch what happens- it should all froth up with bubbles in the pan
  • Pour out into your tinfoil sheet
  • Allow to cool 


Observation:
carbonate reacting with carbon dioxide and we trapped the bubble in the hokey pokey

Acid carbonate + Carbonate                Salt+Water+Carbon dioxide







Wednesday, 30 May 2018

Carbon dioxide experiment

Aim: To show that carbon dioxide gas is produced when a metal carbonate reacts with acid.

Method:

  1. Light your Bunsen burner
  2. Ass a 'pea-sized' amount of metal carbonate into one of the boiling tubes.
  3. place the boiling tube into a test tube rack. Ensure you have the bung and delivery tube ready
  4. Add 5 mL of acid to the boiling tube and quickly insert the bung and delivery tube into the mouth of the boiling tube.
  5. Holding the other boiling tube with your tongs, capture the gas produced as shown in the diagram below.
  6. When you think the tube is full, your lab partner should light a wooden splint
  7. Carefully remove the boiling tube from under the delivery tube, taking care to keep it facing upright
  8. Insert the burning splint into the mouth of the test tube.
OBSERVATION:
E1 - When we put the burning splint in the test tube, it got extinguished due to the presence of carbon dioxide.

E2 - We also tried it with lime water. The lime water turned from colourless to cloudy and it starts bubbling.


Friday, 25 May 2018

Science Expirement

Aim: TO make a metal oxide and observe the difference in properties of the product compared to the reactants.

Equipment: Magnesium, Bunsen burner, safety glasses, metal scissor tongs.

Method:

-Light your bunsen burner
-Hold your piece of magnesium in the scissor tongs. Ensure you are holding onto the very tip of the magnesium.
-Place the other end of the magnesium into the Bunsen flame (at the top of the blue flame).
-When the magnesium begins to burn, do not look directly at it, as the light emitted can permanently damage your eyes.


Metals
Before
After
Magnesium
Metallic lustre
Bright White Light
Iron

Black
Copper
Bronze
Dark purple/Black

Observation
When the magnesium was held over the top of blue flame it started a bright white light while it was burning. Copper, when it started, was bronze then after it burned it turned Dark purple/Black.

Magnesium + Oxygen          Magnesium Oxide

Iron + Oxygen            Iron Oxide

Copper + Oxygen       Copper Oxide

Thursday, 24 May 2018

Testing Hydrogen gas

Testing for Hydrogen Gas:

Aim:
To show the hydrogen gas is produced when a metal reacts with acid

Equipment:
A test tube, a boiling tube, Bunsen Burner, wooden splint, a bottle of acid, a piece of metal, safety glasses.

Method:
1. Light your Bunsen Burner
2. Add your sample of metal to your test tube. Add to mL of acid
3. Carefully invert the boiling tube above the test tube containing the metal and acid.
4. Hold the test tubes together for a few minutes, allowing time for the inverted boiling tube to fill with gas.
5. When you think the test tube is full, your lab partner should light a wooden splint
6. Carefully, but quickly, tilt the boiling tube full of gas upwards and insert the burning splint into the mouth of the test tube.

Image result for testing hydrogen gas
When the metal went in the acid it started to sizzle a bit forming smoke. After putting the other test tube over it nothing really was occurring. We lit the fire then put it in the test tube. Gas started forming on the rims of the test tube. After displaying that, there was a loud bang-like sound. That's when you know it works.

Friday, 18 May 2018

Paleolithic stone age poster

This is what the Paleolithic stone age did to live in the early days. They only ate food that they make and they don't eat any dairy. They also invented the first stone tool 2.6 million years ago to about 10,000 B.C.E. They lived in huts made out of animal skins and cave mud


Paleolithic by Andrew Manarang

Gaming is making too many people unhealthy


Tuesday, 15 May 2018

Persuasive discussion

This is what we think about technology being useful to increase student engagement and achievement.

Tuesday, 8 May 2018

Term 1 Reflection

To think back about a past 

I am happy with my Science test scores because they are all Merit or Higher.  I am also happy with my Sketches in Graphic because it was my first time and I think I did well.

I could've done a better explanation on my science blog about the experiments I did so I could´ve gotten a higher grade. I could´ve also put colour Sketches so it would stand out.

My goal for this term is to get an excellence in my science test and explain my experiments better. 

Monday, 7 May 2018

Science Expirement (Neutralisation)

Aim: To observe a neutralization reaction

Equipment: Test tube, Test tube rack, Ammonium Hydroxide, Sulfuric Acid, dropper or dropper battle,  Universal indicator solution

Method: Add approximately 1-2 mL of Ammonium Hydroxide and place the test tube into the test tube rack. Add
3-5 drops of Universal indicator solution. Using a dropper bottle, add Sulfuric acid drop by drop. Be careful because adding even a small amount of extra acid can mean you´ll miss the neutralisation.

Observations: Universal indicator turned blue when you put sodium carbonate solution. When you put acid it'll make some bubbles. When you add too much acid the colour changed to yellow, green and red.

Thursday, 3 May 2018

Ways technology has changed how we do things



This slide is about how technology has improved from the past and how it is attached to us everywhere, and how it made everything easier.

 

Technology: is a modern tool that we use every day to help us solve our problems and to entertain us.