Testing The Presence of Oxygen | Glowing Splint

 Glowing Splint Experiment

Aim: To carry out a test for the presence of oxygen gas.

Equipment: A pea-sized amount of manganese dioxide, boiling tube, a bottle of hydrogen peroxide, safety glasses, wooden splint, Bunsen burner, test tube rack.

Method: 1. Light your Bunsen burner.

               2. Add the manganese dioxide to the boiling tube and place it in your test tube rack.

               3. Add 2ml of hydrogen peroxide.

               4. Light a splint and let it burn for a while.

               5. Blow the splint out and insert the glowing embers into the mouth of the boiling tube.

Observation: When putting out the fire on the splint I made sure there was still some of it glowing from the burning of the wood, and then I made sure there was smoke coming from the reaction of the manganese dioxide and hydrogen dioxide, the smoke is the oxygen dioxide. When I inserted the glowing splint from the mouth of the test tube it then burns the splint even more and it started a flame just like the photo above. I was repeating the process of putting the splint inside the rack because it was pretty satisfying and addictive.

Trashing Our Planet | Sos

Kia ora people, in social studies we have been learning about the plastic pollution in the ocean and how much it affects the marine life. 

I learned that the ocean has a really big impact on earth. If it got more polluted it would destroy the way we lived and the ocean life. It also said that if this thing still gonna continue, the coral reefs will disappear 50 years from now.

Great Pacific Garbage Patch 

The video that we watch has showed us a lot of informantion about the pollution, it's called seaspiracy, It showed us how badly damaged our ocean is, and how much it affected whales and dolphins. It showed us so many details about the pollution in the ocean and it influences us so much to help. It showed us how cruel human can be, and how much the marine life suffered from this problem. 

I thought everyone should take this topic seriously, because there will be a time that the ocean die, and if the ocean dies, the whale dies and if there are no whales there will be no phytoplankton that are produced, if there are no phytoplankton produced it would reduce the clean air we breathe because it absorbs carbon dioxide four times than

amazon rainforest. With no ocean, we die. I also think this is really messed up and that government should prioritise.

We can help overcome this situation by joining groups that cleans the ocean, reduce the use of plastics of our everyday life and instead use utensils that are made from wood, use your own water bottle and donate to websites that are working on a project to clean the ocean and shores.

The Great Pacific Garbage Patch (GPGP) is the largest of the five offshore plastic accumulation zones in the world’s oceans. It is located halfway between Hawaii and California.

The GPGP covers an estimated surface area of 1.6 million square kilometers, an area twice the size of Texas or three times the size of France. 

Using too much plastic causes it to stack up and combined with other rubbishes when it stacks up there will be more and more plastic in our landfill, some of them will be sent to waterways and through the ocean which affects the ocean lives. 

Action	Cause; Why did it happen?	Effect (Short/Long Term); What happened after?
Littering	Lazy/Ignorant	Place becomes messy/Rubbish goes into the waterway.
Daily use of plastic	Plastic stacking up	More rubbish in the rubbish land, then thrown to the ocean.
Banning plastic bags	Plastic Pollution	Less plastic pollution, less plastic in the ocean, Lower the chances of climate change.
Joining groups that cleans the shore/ocean	People don't want more plastic in the ocean.	Helps to clean the environment even in just a bit.
Tones of rubbish being dumped into the ocean	Over using plastic, not using recyclables	Killing the ocean life, causing the corals to die and disappear within years from now.

Metal Oxide Experiment

Making a Metal Oxide

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

Equipment: A piece of magnesium, Bunsen burner, safety glasses, metal scissor tongs.

Method: 1. Light your bunsen burner.

               2. Hold your piece of magnesium in the scissor tongs. Ensure you are holding onto                     the very tip of the magnesium.

               3. Place the other end of the magnesium into the Bunsen flame (blue flame).

               4. When the magnesium begins to burn, do not look directly at it, as the light                             emitted can permanently damage your eyes.

Observation: Before I put the magnesium onto the flame it was hard, shiny, and malleable. When I put it onto the flame it then became like a paper-ish texture and it lights so much. After the equipment the magnesium turned into something like and ash powder.

It went like this. (not the actual photo of my experiment)

Metal Reaction | Science

Kamusta everyone, today in science we were doing an experiment about metal and how it reacts to acid. 

Testing for Hydrogen Gas

 Aim: To show that hydrogen gas is produces when a metal reacts with acid.

Equipment: A test 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 2 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 tube is full, your 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.

Observations: The metal and the acid reacted, it got hot and it bubbled. When I aim the fire near the mouth of the test tube, the fire and the oxygen reacted and made a pop sound with a little fire within below a seconds.

Magnetic Metals | Science

Kia Ora everyone today in science we were tasked to research metals, I chose the topic; magnetic metals and research it. 

Magnetism is created by the uneven distribution of electrons in atoms of certain metal elements. The irregular rotation and movement caused by this uneven distribution of electrons shift the charge inside the atom back and forth, creating magnetic dipoles.

Magnet

When magnetic dipoles align they create a magnetic domain, a localized magnetic area that has a north and a south pole.

In unmagnetized materials, magnetic domains face in different directions, canceling each other out. Whereas in magnetized materials, most of these domains are aligned, pointing in the same direction, which creates a magnetic field. The more domains that align together the stronger the magnetic force.

There are 3 types of magnet, they're Permanent Magnets, Temporary Magnets, and Electromagnets.

Permanent Magnets - Permanent magnets produce a magnetic field due to their internal structure. They do not lose their magnetism easily.

Temporary Magnets - Temporary magnets only retain their magnetic properties under certain conditions. When these conditions are no longer present, they lose their magnetic field. 

Electromagnet - Electromagnets are magnets that produce magnrtic fields when an electric current passes through them. They're are used in many products, like motors, generators, relays, headphones, and more, all use electromagnets. 

Neodymium

The strongest magnetic metal in the world is Neodymium. According to Wikipedia Neodymium is a chemical element with the symbol Nd and atomic number 60. Neodymium belongs to the lanthanide series and is a rare-earth element. It is a hard, slightly malleable silvery metal that quickly tarnishes in air and moisture.