Evaporation Experiment

Evaporation Experiment 

Intro: We have been learning about Evaporation and how do Evaporation work. Evaporation when the liquid turns into a gas.

Aim: To evaporate Copper Sulfate (Blue Liquid). To separate the mixture.

Hypothesis: I think there will be some blue stuff that will be left behind the solution.

Equipment: 

1. copper sulfate solution
2. 250ml beaker
3. heatproof mat
4. evaporating basin
5. element

Method: 
1. Set up the element.
2. Add 100ml of hot water to the beaker and place on the element.
3. Add copper sulfate to the evaporating basin until it is quarter full.
4. Carefully, place the evaporating basin on the top of the beaker.
5. Turn the element to 8.
6. Heat the solution most of the solvent has been evaporated and crystals of solute are forming.
7. Turn off the element-careful not to touch as will be hot for a long time.

Observation: The water started boiling, then the steam heat up the copper sulfate then the copper sulfate evaporated and left with crystals

Conclusion: I can see that my hypothesis is correct because it left with blue crystals on the evaporating dish

Discussion: When the water started boiling because of the element, the steam from the water heats up the evaporating dish where the mixture of solvent and solute are. While heating up the dish, the mixture started evaporating, and it left with crystals in the dish.  

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.

10 Healthy Ways to Deal with Jealousy | Influences and Fixes

Hello everyone, for todays blog I made a DLO of how to deal jealousy in a healthy way.

Here it is:

9/11 Timeline | Timeline of Attacks

Kia ora everyone, today in Hurumanu Chaos we need to blog about the timeline on what happened at 9/11. 

• 7:59 A.M.: American Airlines Flight 11 takes off from Boston Logan International Airport, bound for Los Angeles International Airport.

• 8:14 A.M.: Flight 11 is hijacked.

• 8:14 A.M.: United Airlines Flight 175 takes off from Boston Logan, also bound for Los Angeles.

• 8:20 A.M.: American Airlines Flight 77 takes off from Washington Dulles International Airport, also bound for Los Angeles.

• 8:42 A.M.: United Airlines Flight 93 takes off from Newark International Airport, bound for San Francisco International Airport.

• 8:42–46 A.M.: Flight 175 is hijacked.

• 8:46:40 A.M.: Flight 11 crashes into the North Tower of the World Trade Center between the 93rd and 99th floors.

• 8:50–54 A.M.: Flight 77 is hijacked.

• 9:03:02 A.M.: Flight 175 crashes into the South Tower of the World Trade Center between the 77th and 85th floors.

• 9:28 A.M.: Flight 93 is hijacked.

• 9:37:46 A.M.: Flight 77 crashes into The Pentagon.

• 9:59:00 A.M.: The South Tower collapses.

• 10:03:11 A.M.: Flight 93 crashes into a field in Shanksville, Pennsylvania.

• 10:28:22 A.M.: The North Tower collapses.

• 11 am – Mayor Rudolph Giuliani calls for the evacuation of Lower Manhattan south of Canal Street.

• 1 pm – At Barksdale Air Force Base in Louisiana, President Bush announces that U.S. military forces are on high alert worldwide.

• 2:51 pm – The U.S. Navy dispatches missile destroyers to New York and Washington, D.C.

• 5:20 pm – The 47-story Seven World Trade Center collapses after burning for hours.

• 6:58 pm – President Bush returns to the White House

• 8:30 pm – President Bush addresses the nation, calling the attacks “evil, despicable acts of terror”.

Dilution Experiment

Magandang umaga, hapon or gabi bloggers! Welcome to my blog, on Monday what we did in science was very awesome because we did an experiment about dilution. 

                   

                        Dilution Experiment

Aim: To make a dilution series to investigate concentration.

Equipment: A potassium permanganate crystal, six large test tubes, tweezers, a plastic transfer pipette, a test tube rack, 10 ml measuring cylinder. 

Method: 

1. Place the six tubes in a test tube rack. Label the rack with number 1-6.
2. Using the measuring cylinder, fill test tube 1 with 10 ml. Fill the remaining test tubes with 5 ml of water.
3. Using your tweezers, add a single crystal of potassium permanganate to test tube 1.
4. Gently shake the test tube until crystal has dissolved.
5. Using the transfer pipette, carefully remove exactly 5 ml from test tube 1 and pour it into test tube 2.
6. Rinse the transfer pipette thoroughly to ensure that no purple solution remains.
7. Gently shake test tube 2 and repeat transfer process, transferring exactly 5 ml of solution from test tube 2 to test tube 3. 
8. Rinse the pipette again and repeat the transfer process for test tube 4,5 and 6.

Discussion: This was a very great experiment. From test tube to test tube, the liquid became lighter and lighter because of the 5ml potassium permanganate crystal that we drop put inside using the pipette. 

Chocolate Chips Cookies | Home Economics

Kamusta bloggers welcome to my blog. Today in home economics we baked some chocolate chips cookies. My group made perfect cookies, we know it's good because we tested it to other students and they agreed that it's delicious and perfect.

Ingredients: 

-100g butter

-1/2 cup white sugar

-1/2 brown sugar

-1 egg

-Pinch of salt

-1/2 tsp of baking powder

-1 cup of chocolate chips 

The Present | Questions

Hello everyone, today in wananga our teacher gave us a task, we need to watch a short cartoon film and answer the questions she gave. 

Link of the video: https://youtu.be/WjqiU5FgsYc

How would you describe the boy at the start of the video? 

The boy is amazed and serious about the video game

 he's playing.

What did he think of his present? How do you know? Why did he felt that way?

At first, he wasn't really interested in the present that her mother gave, because it's a dog that only has 3 legs. He felt uneasy and disgusted.

What lesson did the boy learn by the end of the film?

The lesson her learnt at the end of the story is to be grateful for what he has.

Why is it important to be grateful for what we have?

It's important to be grateful because that's what you have right now because no matter what at the end of the day everyone is the same.