Science Experiment

This Friday in Science we did another amazing experiment It's called the Alchemy. But before we do the experiment our teacher said we need to put our safety goggles first and get all the equipment. About two minutes later we finish preparing the things that we need so we started doing the experiment. The experiment went well because the copper coin that we put in the beaker turn into some color of gold/silver. You always have to put your safety google on when you're doing this experiment because if you forget to wear your safety goggles your eye will get damaged by the fire. 

Alchemy

 

I was aiming to find out how to turn a copper coin into gold.

Equipment:

• Copper Coin
• Bunsen burner
• Tripod
• Heat Mat
• Gauze mat
• 50ml beaker
• Scissor Tongs
• Zinc metal
• Zinc Nitrate solution

Method:

1. Put your safety glasses on.
2. Set up heating equipment.
3. Add 50ml of Zinc Nitrate to the beaker.
4. Add the strips of zinc metal into the solution.
5. Heat the beaker with a blue flame.
6. Once the solution is boiling, add the Copper coin on top of the Zinc.
7. Wait for 10mins.
8. Using scissor tongs, get the coin and wash it under water.
9. Still holding the coin with the scissor tongs, hold the coin in the blue flame.

Orana Park Visit

Yesterday the 18th of September the whole year 7 went to the coolest zoo in Christchurch. It was fun because we got to see some of the native animals of New Zealand. Some animals are almost extinct because of the pollution that is happening on earth. If we keep our pollution clean and safe our animals on earth will stay safe until something bad happens to us. “ I'm going to tell you what HIPPO stands for, H- Habitat loss, I- Introduced species, P- Pollution, P- Population growth and O- Over exploitation”.

My favorite animal that I saw in the Orana Wildlife Park is the Zebra because “did you know if you look at the zebra their stripes are not the same because they are all unique. If you look at our fingerprint it not same as the other people because if we have the same fingerprint we can't hold each other accountable. Also zebra are born black and then develop their white stripes.





Some facts about the animals in the Orana Wildlife Park……

• Giraffes tongue changed color so it doesn't get sunburnt. 

• Rhino horn is made out of the same stuff as our hair and toenails. 

• Kiwi has strong legs to kick predators. Their legs aren’t hollow like birds who fly. 

• Cheetah needs to rest after they hunt and sometimes their food gets stolen by lions or hyenas. 

• Chocolate is toxic to Kea. Make sure you put them off your car before you drive. 

• Tasmanian Devils are marsupials and carry their babies in their pouches. Only the strongest 4 would survive because the mum only has 4 teets to feed on. 

• A male Lion's roar can be heard from up to five miles away and it is also the loudest roar of any big cat species. 

• The oldest ape is dominant and the young ape must give whatever he wants.

• Cheetah is the only large cat that can purr. 

• Spider monkey uses their tail to support their balance. 

• Female kiwi is larger to carry the eggs. They have no tail and their wings are underdeveloped. 

• Tigers live alone and spray to mark their territory.


• Spider monkeys have a thumbprint on their tail. 

      

Growth-mindset V.S Fixed mindset

In philosophy, we did something awesome it was a growth mindset v.s fixed mindset. We have to make a DLO about growth mindset v.s fixed mindset. We have to right information about growth and fixed mindset.

Ice, Match And Salt Experiment

In science, we did another cool experiment. The name of the experiment is called the ice experiment because we used ice and a match. Science is always fun because of the experiments.




What Happened?

What happens is the ice and the salt together makes the ice dissolve.

If you put salt, a little stick and ice together you put a little bit of salt on the match and the match should stick to the ice and the ice should come up with the matchstick. Also, some groups were trying to make it but they took almost 20 minutes. Our group was the first one to do the experiment I think we followed the instructions. If you don't follow the instructions it will not work.




What do you need:


A bowl of cold water


A matchstick


An ice cube


Table salt


Instructions:





Place the ice cube carefully in the bowl of cold water


Gently place the match lengthwise on top of the ice and try to lift the ice cube


Put the matchstick back on the ice and sprinkle a little salt along the line where it touches the ice cube


Wait for 30 seconds and then attempt to pick up the ice cube again








Why do we sprinkle salt on icy roads? Because the salt makes the ice melt faster to lower the freezing.

Geometry knowledge Slide show

Hey everyone in maths our teacher told us to do a dialog about geometry. geometry is fun but sometimes hard too but it's ok when you learn it.

Check the slide down below to see what is the different type of geometry.

Science Experiment (Elephant toothpaste)

In science we did a experiment for elephant toothpaste. It's fun because you can see the bubble going up. Science is fun because you can do some fun experiment but it can also be dangerous.





Elephant’s Toothpaste


Resources:


Safety glasses


A cylinder


Rubber gloves


A tote tray to protect the bench from damage






120ml Hydrogen Peroxide 6%


Dishwash liquid


Dry yeast ,,


Food colouring


Funnel


Tablespoon


Beaker


Procedure:


Put on your gloves and goggles.


Put a tote tray on the bench and put your cylinder in the tote tray, with the funnel in the top.


Ask the teacher to pour the hydrogen peroxide into your cylinder (via the funnel).


Add 10 drops of food colouring to the cylinder (via the funnel).


Add a tablespoon of dishwashing liquid to the bottle (via the funnel).


Swirl your cylinder around to mix everything together.


In a beaker, mix a tablespoon of dry yeast with 3 tablespoons of warm water and stir for 30 seconds.

Pour the yeast mixture into the cylinder (via the funnel).


Stand back and watch the chemical reaction!


Pour the mixture down the drain afterwards and wash out the cylinder.


Scientific Explanation (How it works):


The yeast and water mixture acts as a catalyst - something that speeds up a chemical reaction in another substance, while remaining unchanged itself. When you add this to the cylinder it makes the hydrogen peroxide break down into oxygen and water. "Also the toothpaste almost explode out of the cylinder".

Is your cylinder warm after the experiment? Why? Yes, because when you mix all the chemical it will make it warm enough so you can't touch it.

I need you!

For the last 3 weeks, we are going to have a challenge about who gets the most points. Here is the challenge.

Over the next three weeks track how many comments you receive and who they are from. Each community group is worth a different amount of points. The team (Cybersmart Buddies) who have the most points by the end of the term will receive a reward. You can bribe, market and sell your blog in whatever way you see fit! Who is your target audience going to be???

Please Help Me!!!!