Bubble Reflection!

Today at Technicraft we did an experiment involving the reflection and colours of the bubbles before they finally dehydrate and evaporate. This is how you do it…!

Ingredients and tools:

• Plastic Container
• Straw
• A flat surface (table)
• Glycerine
• Detergent
• Water

Method (You need sunshine on the table):

• Make a solution consisting of glycerine, detergent and water.
• Pour that solution into the plastic container.
• Use your hand and dip it into the solution and wipe it onto your table.
• Start blowing bubbles one at a time and observe the pattern of colours that appear.

Explanation:

When the bubble is blown the bubble starts showing a series of colours in this colour pattern red, blue, light blue/green, violet, yellow and clear transparent before it finally dehydrates and evaporates. This colour sequence indicates the approximated time the bubble is going to dehydrate and evaporate.

Technicraft - Fair Test!

This Thursday at Technicraft we were doing a fair test with different types of bubbles made from different solutions! This is how to do it…

Ingredients and Equipment:

1. 500ml water
2. 100ml detergent
3. 10ml glucose
4. 10ml glycerine
5. 10ml sugar
6. 10ml salt
7. Beaker
8. 5 plastic cups
9. 5 straws
10. Labels on each cup

Method:

1. Label each individual cup with an individual substance: detergent, glucose, sugar, salt and glycerine.
2. Put one straw in each cup.
3. Add 20 ml detergent in each cup.
4. Add 100 ml water in each cup.
5. Add 10 ml of each substance labelled on the cups.
6. Wet a flat surface.
7. Carefully making sure you don’t mix them you blow a bubble with each different solution.
8. Blow the bubbles one by one and do 3 tests on each solution.
9. See which one lasts longer.

Hypothesis:

I think that the glycerine will last the longest because it is heavier than the other substances providing it more protection for the bubble.

1st Place: Glycerine

2nd Place: Glucose

3rd Place: Sugar

4th Place: Detergent

5th Place: Salt

Explanation:

The glycerine bubble lasted the longest because it was more heavy, syrupy and viscous than the other substances. Since the glycerine was heavy it strengthened and supported the detergent making the dehydration and evaporation process delay.

The salt bubble didn’t last very long. It lasted less than a second before it dehydrated and evaporated. This is because when salt is applied to detergent the salt’s sodium turns the water into hard water. When the hard water comes in contact with detergent the hard water lessens the effectiveness of the detergent speeding up the dehydration and evaporation process.

Walht: write an explanation using the words of science.

Acrostic Poem

Christian Practices during Easter!

My School Holiday!

One icy, arctic day, I felt as if I was trapped inside an iceberg and at the brink of being paralyzed, I spent some quality time with some of my family members. (brother, sister and mom.) Although it was frosty cold, it didn’t obstruct my excitement to go to the cinema.

Before we went to the cinema we bought food to snack on while we were enjoying the movie.  My mom and sister choose the third row from the front seats to sit in to ensure we had the best viewing positions.

When we arrived there at the Sylvia Park complex, we were actually planning to watch Beauty and the Beast, but there were no seats available. Consequently the decision was made to watch the new Guardians of the Galaxy 2 movie.

The movie was about a band of time travelling, galaxy warping, universe surfing mercenaries. They go on quests for kings and overlords from different planets, and are rewarded for various different services. These relentless mercenaries are called, James, Rocket Raccoon, Drax, Gamora and Groot. Rocket Raccoon is a highly-intelligent Raccoon and is considered a mechanical engineer, James is a half-human and half-god hybrid, Gamora is an alien born from the god Ragnarok and Groot is a living manifestation of a tree.

On first sight of the movie I thought that it was just going to be a follow up from the previous movie, but it was a completely other story and galaxy. Groot and Rocket Raccoon is the only characters in the film that were completely CGI (Computer Generated Imagery). And by far, they are the most interesting and funny characters throughout the film!

I really enjoyed the holidays, it was really amusing. Although it was as if I was underneath a glacier, I really enjoyed the contents in the film and the action and adventure that was included in the film.

Glossary:

Ragnarok - An extraterrestrial god and the keeper the infinity gauntlet.

Infinity Gauntlet - A glove that grants mortals immortality.

Mercenaries - People who are hired and given a reward for their services.

Hybrid - A living organism that combines the genes of the two different species.

Science - Soap Bubbles Experiment!

Today was the first day back to Technicraft, this term we are doing science! And this is the experiment...

Experiment:

• Grab 2 beakers and pour 100ml in each.
• Put a straw in one of the 2 beakers.
• Blow a couple water bubbles and observe.
• In the other beaker pour the detergent, wait for a minute and observe the changes.
• Mix the detergent in the water.
• Blow a couple bubbles in the same beaker and observe.
• Notice the differences in the soap bubbles and water bubbles

Explanation:
When the regular water generates, the bubbles trap the air, but they immediately dehydrate and evaporate because the air is always expanding outwards so as soon as the water bubbles reach the surface the bubbles dehydrate. After the detergent is poured into the water, the detergent sinks to the base of the beaker due to the fact that detergent is a lot heavier than the water.

After mixing the detergent the water becomes temporarily protected by the detergent making it sturdier. But the air is still repelling the fluids and the detergent forms a soap bubble around that captured air. A regular soap bubble consists of a thin layer of fluids and an air pocket inside forming a sphere. Meanwhile the thin layer is slowly evaporating after creating the bubble due to the air pocket always expanding and the fluid layer is getting thinner and those fluids  funnelled to the bottom of the bubble, until applying so much pressure that it dehydrates and pops.

It was a very entertaining and educating time and I really enjoyed it, especially while doing the experiment with my partner!