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.

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. 

Acid Rain Experiment

 Kamusta everyone today in Science we were talking about Acid Rain, and we did an experiment similar to acid rain but in a small version.

Acid Rain Pathway

Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.

Acid Rain Experiment

Aim: To observe effects of Acid Rain

Hypothesis: I think it will affect everything around its area 

Equipment: Petal, calcium carbonate, apple, universal indicator, bromothymol blue.

Method: In a petri dish place items around the edge. Wet dry ingredient with a drop of water. In the middle put a  boat. Add a spatula of sodium sulfate to weigh boat and 5 drops of sulfuric acid. Quickly close the lid.

The universal indicator turned into red, the bromothymol blue went yellow, the flower loses its color a little bit same as the apple, nothing happened to the calcium carbonate tho. It all happened because of the reaction of sodium sulfate and sulfuric acid. The calcium carbonate supposedly bubbles a bit, but we might did something wrong that's why it didn't bubble. 

Before

After

 

Atomic Science: Periodic Table

 Kia ora everyone this past few lessons on science we were studying about the periodic table, elements, atoms, chemical and physical change, electrons, balancing symbol equations, mixture, and compounds, and chemical word equations. We also played Element Bingo.

The periodic table shows us all the elements and their physical properties, it is arranged base on atomic number and electron configuration. 

Alkaline Metals

Alkaline Earth Metals

The alkaline earth metals are six chemical elements in group 2 of the periodic table. They are beryllium, magnesium, calcium, strontium, barium, and radium. The elements have very similar properties: they are all shiny, silvery-white, somewhat reactive metals at standard temperature and pressure. They react to everything because their outer shell is unstable which means it only has 1 electron. Having 1 electron is easier to get rid of it rather than gaining 7 more, so it reacts to everything

Alkaline Metal Experiment

We also did an experiment about alkaline metals, but we only use Lithium (Li) and Sodium (Na). Ms put the Lithium onto the water and it bounces very fast which causes it to levitate while levitating there was smoke coming from the lithium, due to the reaction of the chemical and water. The lithium slowly dissolves (base on what I think) and shrank to the bottom of the container and started to dye the water, purple. 

The second one we did was Sodium (Na), this one was pretty entertaining and cool. Sodium is very reactive, it reacts to everything that's why it is covered with oil and put into a jar. It is a very soft metal so Ms just cut a small piece of it for the experiment. Same as what she did with the lithium, Ms put the sodium onto the water and it reacts as if it was lithium but our teacher told us that this isn't how it is gonna react to water. So she took a big piece of sodium and sliced off the sides that are covered with oil, she was left with a small piece of pure sodium the size of a peanut. She put it onto the water and a few seconds later, KABOOM! it exploded and smoke and small sparks of fire spread in the science room. 

Don't worry we're safe because there was this glass shield that was put in the front of the container to prevent us from getting harm, poor tables tho they got burnt marks from the fire and sparks. 

HAVE A GREAT DAY!...

Stop Motion - Conduction

 ℌ𝔢𝔩𝔩𝔬 𝔢𝔳𝔢𝔯𝔶𝔬𝔫𝔢 𝔴𝔢𝔩𝔠𝔬𝔪𝔢 𝔱𝔬 𝔪𝔶 𝔟𝔩𝔬𝔤, 𝔱𝔬𝔡𝔞𝔶 𝔦𝔫 𝔬𝔲𝔯 𝔱𝔢𝔞𝔠𝔥𝔢𝔯 𝔤𝔞𝔳𝔢 𝔲𝔰 𝔞 𝔱𝔞𝔰𝔨. 𝔗𝔥𝔢 𝔱𝔞𝔰𝔨 𝔦𝔰 𝔱𝔬 𝔪𝔞𝔨𝔢 𝔞 𝔰𝔱𝔬𝔭 𝔪𝔬𝔱𝔦𝔬𝔫 𝔞𝔟𝔬𝔲𝔱 ℭ𝔬𝔫𝔡𝔲𝔠𝔱𝔦𝔬𝔫 𝔬𝔯 ℭ𝔬𝔫𝔳𝔢𝔠𝔱𝔦𝔬𝔫. 𝔖𝔬 𝔪𝔢 𝔞𝔫𝔡 𝔪𝔶 𝔱𝔞𝔰𝔨 𝔪𝔞𝔱𝔢, 𝔍𝔲𝔩𝔩𝔦𝔢𝔫 𝔭𝔦𝔠𝔨𝔢𝔡 𝔠𝔬𝔫𝔡𝔲𝔠𝔱𝔦𝔬𝔫.

𝔗𝔥𝔦𝔰 𝔦𝔰 𝔬𝔲𝔯 𝔴𝔬𝔯𝔨:

ℌ𝔬𝔴 𝔡𝔬𝔢𝔰 𝔠𝔬𝔫𝔡𝔲𝔠𝔱𝔦𝔬𝔫 𝔴𝔬𝔯𝔨?
ℭ𝔬𝔫𝔡𝔲𝔠𝔱𝔦𝔬𝔫 𝔦𝔰 𝔱𝔥𝔢 𝔭𝔯𝔬𝔠𝔢𝔰𝔰 𝔟𝔶 𝔴𝔥𝔦𝔠𝔥 𝔥𝔢𝔞𝔱 𝔢𝔫𝔢𝔯𝔤𝔶 𝔦𝔰 𝔱𝔯𝔞𝔫𝔰𝔪𝔦𝔱𝔱𝔢𝔡 𝔱𝔥𝔯𝔬𝔲𝔤𝔥 𝔠𝔬𝔩𝔩𝔦𝔰𝔦𝔬𝔫𝔰 𝔟𝔢𝔱𝔴𝔢𝔢𝔫 𝔫𝔢𝔦𝔤𝔥𝔟𝔬𝔲𝔯𝔦𝔫𝔤 𝔞𝔱𝔬𝔪𝔰 𝔬𝔯 𝔪𝔬𝔩𝔢𝔠𝔲𝔩𝔢𝔰. 𝔗𝔥𝔢𝔰𝔢 𝔳𝔦𝔟𝔯𝔞𝔱𝔦𝔫𝔤 𝔪𝔬𝔩𝔢𝔠𝔲𝔩𝔢𝔰 𝔠𝔬𝔩𝔩𝔦𝔡𝔢 𝔴𝔦𝔱𝔥 𝔱𝔥𝔢𝔦𝔯 𝔫𝔢𝔦𝔤𝔥𝔟𝔬𝔲𝔯𝔦𝔫𝔤 𝔪𝔬𝔩𝔢𝔠𝔲𝔩𝔢𝔰, 𝔪𝔞𝔨𝔦𝔫𝔤 𝔱𝔥𝔢𝔪 𝔞𝔩𝔰𝔬 𝔳𝔦𝔟𝔯𝔞𝔱𝔢 𝔣𝔞𝔰𝔱𝔢𝔯 𝔞𝔫𝔡 𝔱𝔥𝔢 𝔤𝔩𝔲𝔢 𝔰𝔱𝔞𝔯𝔱𝔢𝔡 𝔱𝔬 𝔲𝔫𝔰𝔱𝔦𝔠𝔨 𝔪𝔞𝔨𝔦𝔫𝔤 𝔱𝔥𝔢 𝔠𝔩𝔦𝔭𝔰 𝔣𝔞𝔩𝔩. 𝔄𝔰 𝔱𝔥𝔢𝔰𝔢 𝔪𝔬𝔩𝔢𝔠𝔲𝔩𝔢𝔰 𝔠𝔬𝔩𝔩𝔦𝔡𝔢, 𝔱𝔥𝔢𝔯𝔪𝔞𝔩 𝔢𝔫𝔢𝔯𝔤𝔶 𝔦𝔰 𝔱𝔯𝔞𝔫𝔰𝔣𝔢𝔯𝔯𝔢𝔡 𝔳𝔦𝔞 𝔠𝔬𝔫𝔡𝔲𝔠𝔱𝔦𝔬𝔫 𝔱𝔬 𝔱𝔥𝔢 𝔯𝔢𝔰𝔱 𝔬𝔣 𝔱𝔥𝔢 𝔰𝔭𝔬𝔬𝔫.

Distillation Experiment

Distillation Experiment

Separating a Mixture using Distillation

Aim: To separate a solute from a solvent in a solution using distillation.

Hypothesis: On my head, I think what will be left on the conical flask will be the sugars, and the evaporated gas in the cold boiling tube will turn into water.

Equipment: 

• coke zero
• conical flask
• heatproof mat
• a delivery tube and bung 
• element
• tripod
• gauze mat
• retort stand
• boiling tube

Results: 

Observation: 

1. When the coke(solution) started to boil and it starts to evaporate. 
2. You can see condensation on the conical flask.
3. Evaporated coke went to the delivery tube and now it's white like water, then the delivery tube delivered the liquid to the cold boiling tube.
4. The cold boiling tube turns the steam into waters(solvent).
5. What left on the conical flask is the sugar.

Discussion: The solution(coke/sugar) is separated with the solvent using distillation, The solution started evaporating when it starts boiling because we heated it using the element, you can also see condensation inside the conical flask because of the heat contacted with the cool conical flask, and the evaporation travels to the delivery tube. The delivery tube sent the steam to the cold boiling tube (it's cold because we put ice outside it) and turns into a solvent(water). The solution (sugar) is left on the conical flask solid.

Filtration Experiment

Filtration Experiment:

 

Aim: To Separate a solution from a precipitate (precipitate is the name for a solid that forms in a liquid during a chemical reaction).

Hypothesis: I think the mixture will be the same even if it's filtered

Method:  1. Pour approximately 50mL of copper sulfate solution into a beaker.

2. Add the same volume of sodium carbonate solution. A reaction will happen, you should see a cloudy blue precipitate form. Called copper carbonate. 

3. Watch demo then fold filter paper to fit inside the funnel

4. Place the funnel with the filter paper inside of it, into the mouth of a conical flask. 

5. Stir the mixture in the beaker, then carefully pour it into the funnel. 

6. Observe what happened.

Equipment:

Sodium carbonate

Copper sulfate

Conical flask

Stirring Rod

200mL Beaker

Funnel

Filter paper

 

Observations and Discussion: After mixing the copper sulfate and the sodium carbonate solution, the mixture turned very bluish. After putting the mixture to the filtrate, the filtered mixture turned white/clear liquid while the filtered paper had some blue residue left.

Science - Respiratory System

Breathing and Respiration

Activity:

Use the slideshow to help you answer the Questions below: Respiratory System Slideshow

1. Do 15 min of Quizlet

2. Which two gases are the respiratory system trying to move:

INTO THE BODY:	Oxygen (O2)
OUT OF THE BODY:	Carbon Dioxide (CO2)

Why do we need oxygen in our body?

We breathe because oxygen is needed to burn the fuel [sugars and fatty acids] in our cells to produce energy. Oxygen is brought into the lungs via breathing, where it is transported by red blood cells to the entire body to be used to produce energy.

4. Click on the picture below… then Edit the drawing to complete the 3 tasks.

5. What do each of these features do to help us breathe:

Feature:	Breathing In:	Breathing Out:
Diaphragm	Diaphram contract and move forward.	Diaphram muscle relaxed
Intercostal muscles/ Rib cage	rib cage both upward and outward when you inhale.	Rib cage muscle relaxed
Lungs	lungs expand	Lungs deflate
Chest	Chest enlarged	Chest falls

Science - Circulatory System and Heart

Heart and Circulatory System

Activities:

1. Do 10min of Quizlet

2. What is the difference between Oxygenated Blood and Deoxygenated Blood?

Oxygenated blood is carrying more of oxygen to deliver to body tissues while deoxygenated blood is carrying more of carbon dioxide to be expelled from the body.

3. Fill in the blanks using the words: LEFT, RIGHT, BODY, LUNGS

The _left_ side of the heart pumps Oxygenated Blood to the _body_. 

The _right_ side of the heart pumps Deoxygenated Blood to the _lungs_.

4. Label the heart diagram on this GAME HERE. Take a screenshot of your finished diagram and share it below:

5. Explain what the three blood vessels do:

Arteries- Arteries are blood vessels that carry blood away from the heart to the rest of the body.

Veins- Veins are blood vessels that carry deoxygenated blood towards the heart 

Capillaries- Capillaries are the sites of the transfer of oxygen and other nutrients from the bloodstream to other tissues in the body.

6. What is the purpose of the circulatory system? Why is it important? It carries oxygen and essential nutrients to all cells around the body in arteries and carries the waste products and carbon dioxide in veins. 

BONUS QUESTIONS:

Heart Attack Questions:

1. What causes a heart attack? Fatty deposits, or plaques, develop on a wall on our coronary arteries. The plaques can turn into blockages, if one of the plaques ruptures or crack, a blood clot will form around it in minutes, and partially close artery can become completely blocked. Blood flow is cut off to the cardiac muscle and the oxygen-starved cells start to die within several minutes.

2. What are 2 medications which can help with a heart attack? How do they help? Aspirin - thins the blood 

Nitroglycerin - open up the artery

3. What are 2 medical procedures doctors may do after a heart attack? Angioplasty - reopening the blocked artery by inflating it with the ballon and insert a metal or polymer stent that will hold the artery open. 

Coronary Artery Bypass Surgery -  Using a piece of vein or artery from another part of the body to reroute blood flow around the blockage. 

4. Name 3 things which lower the risk for heart attacks. Changing lifestyle. Exercise a healthy diet and diet loss. Eat lots of fibre from vegetables, chicken and fish instead of red meat, whole grains and nuts like walnuts and almonds. Medication can also prevent heart attack

Blood Questions:

1. What colour is blood? RED
2. What causes the colour of blood? The interaction between iron and oxygen.
3. Why do veins look blue? Veins look blue because they’re under the skin. Skin scatters more blue light than red. The skin around the vein looks redder than the vein itself so, colour contrast enhances the veins bluish colour.
4. Do all animals have red blood? Find some examples of animals with different blood colours. Most animals have red coloured blood, but some have different blood colours like spiders and lobster. Their blood is colour blue.

Science - Blood

Kia ora bloggers, today I wanna share my work on science. It questions about blood. Enjoy!

Activity:

1. Use the slides to explain which part of the blood does the following job:

1. Carry oxygen to cells from lungs: Red blood cells 

2. Carry nutrients from your digestive system: Circulatory System 

3. Fight infection/sickness: White blood cells (WBCs)

4. Help blood clot in cuts: Platelets

5. Carry carbon dioxide to lungs: Carry carbon dioxide to lung

2. Research and Write a story pretending to be either a: 

1. Platelet- explaining what it does to help heal a cut.
2. White Blood Cell- explaining how they help fight infection

Aim for a story with 3 paragraphs, using scientific language.

Platelets act like a temporary plug to prevent the further loss of blood

Platelets are type of blood cell together with red blood cell, white blood cells and plasma.

It plays various major roles in the body; among these role is the blood clotting process.

Platelets helps in the blood clotting process through the formation of a clot or a plug that temporarily prevents excessive loss of blood.