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-Nai Bai
-Huang Jing Bai Cai
-Cherry Tomato
https://gardeningtips.in/growing-cherry-tomatoes-hydroponically-a-ful-guide

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Items that can be recycled …
Items that cannot be recycled

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Solid Waste In industrial services, solid waste includes a variety of different materials, including paper, cardboard, plastics, packaging materials, wood, and scrap metal. Some of these materials can be reused and recycled by a recycling center. If you don’t have a comprehensive waste management plan that includes recycling, your waste disposal is not going to be as cost-effective or environmentally friendly as it could be. A recycling center can process the majority of industrial solid waste, effectively reducing your waste disposal costs.

We can use sponge to separate the solid waste from the water

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Follow this so you know what to do

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Details of each task with outcomes you need to achieve

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Details of each task with outcomes you need to achieve

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Slides with specific outcomes you need to achieve for each task you have been assigned!

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(IPW) 6 - Further Research Into Sustainability (18 Jul)

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What is in industrial effluent and domestic waste water?

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What is in industrial effluent and domestic waste water?

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The main thing in effluent water is grease and oil, metals, detergent(but a Low amount). Additionally our water are certain but to be clear of radioactive material,pesticide, any kind of fecal  matter , inflammable solvent and any substance that when in a chemical reaction will cause discomfort.

How water filters work

The filter can be anything from a basic mesh that filters out large debris to a ceramic filter which has an extremely complex pore structure for ultra-fine filtration of pathogenic organisms.

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Hydroponics is a type of horticulture and a subset of hydroculture which involves growing plants, usually crops, without soil, by using water-based mineral nutrient solutions in aqueous solvents. Terrestrial or aquatic plants may grow with their roots exposed to the nutritious liquid, or, in addition, the roots may be physically supported by an inert medium such as perlite, gravel, or other substrates. Despite inert media, roots can cause changes of the rhizosphere pH and root exudates can affect rhizosphere biology and physiological balance of the nutrient solution by secondary metabolites.The nutrients used in hydroponic systems can come from many different sources, including fish excrement, duck manure, purchased chemical fertilizers, or artificial nutrient solutions.

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Hydroponics is a type of horticulture and a subset of hydroculture which involves growing plants, usually crops, without soil, by using water-based mineral nutrient solutions in aqueous solvents. Terrestrial or aquatic plants may grow with their roots exposed to the nutritious liquid, or, in addition, the roots may be physically supported by an inert medium such as perlite, gravel, or other substrates. Despite inert media, roots can cause changes of the rhizosphere pH and root exudates can affect rhizosphere biology and physiological balance of the nutrient solution by secondary metabolites.The nutrients used in hydroponic systems can come from many different sources, including fish excrement, duck manure, purchased chemical fertilizers, or artificial nutrient solutions.

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2

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Task 2

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Jordan , Rysen , Erfha , Racheal

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task 3

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Task 2- erina, veronica, jovan, terrence

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Task 2- erina, veronica, jovan, terrence

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The colours of the shirts affects the absorption of the uv light.

The darker the colour of the material, the slower of the absorption of the uv light.

Steps
1. put the beads under shirts of different colours.
2. wait for 10 minutes

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Idea: To check the effectiveness of different sunscreens using uv beads.

Add-on Idea: To find out the difference between sunscreen and sunblock.

Hypothesis: The slower the uv beads change colour, the better the effectiveness of the sunscreen blocking out the uv rays.

Materials needed: Three different types of sunscreen with the same spf & uv beads.

Method:

1) Apply a layer of the different sunscreens on each of the uv beads.
2) Place the uv beads under the sun for a fixed period of time.
3) The bead that changes colour the slowest has the most effective

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Will the amount of light emitted be affected by the different colours of films placed under UV rays 

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Will the amount of light emitted be affected by the different colours of films placed under UV rays 

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Hypothesis: if the beads are placed under different colour of films, then the beads will not emit a brighter light

Procedure:
1. Place 3 of the same beads on table in a completely dark room.
2. On top of the beads place a red film.
3.then place a UV light on top and wait for bead to absorb the light(30-45sec)
4. Take a picture of result after 30-45s
5. Repeat step 1-4 with green film and blue film
6. Compare the beads with the other beads.

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Check the opacity of different materials(  clear plastic,white paper, sunglasses lense)using UV beads

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Check the opacity of different materials(  clear plastic,white paper, sunglasses lense)using UV beads

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Hypothesis: Sunglasses’ lense will block the most UV light, followed by white paper then clear plastic

materials needed: shoebox, cardboard, sunglasses lense, clear plastic and white paper

steps: 1)poke 3 holes in the shoebox, use the cardboard to separate the 3 beads in the shoebox.
2) cover  the materials over each of the holes respectively
3) ensure the holes receive the same amount of light
4) see which one glows the brightest
5) repeat

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Procedure:
1: Bring KF94 mask and surgical mask
2: Place beads under both masks
3: Weigh the masks down with a pen
4: If light passes through, the mask will not protect you from UV rays

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Hypothesis: If light passes through the mask, then the mask will not protect you from the sun, causing half your face to be darker

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If the glow in the dark bead glows after being submerged in liquid, then the beads can absorb UV rays while being submerged in liquid

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1. Place one bead in a clear cup of water under the sun for 10mins
2. Place one bead in a clear cup of coloured water under the sun for 10mins
3. Place one bead that is not submerged in any liquid under the sun for 10mins
4. Observe if the beads submerged in liquid are glowing after 10mins
5. Thus conclude wether glow in the dark beads can absorb UV rays while submerged in a liquid

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If commonly used sunglasses can block a certain amount of the sunlight, then can the blue-ray sunglasses block the same amount of sunlight?

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Hypothesis:Differnt liquids allow different amount of light to pass through

Procedure:
1) Put 3 beads in different liquids, three in water, three in ink water and three in just a bottle as a control setup
2) make sure to the diff liquid contain equal volume of water
3) leave it in the sun for 5 minutes to let it absorb uv rays
4) put it in a dark and leave it for 5 minutes and compare how bright each bottle have

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Our Experiment is on weather normal sunglasses or spectacular can block the UV light better

EXPLANATION
Commonly used sunglass might not be able to Block 100 percent of UltraViolet(UV)light. So we would like to find out if there differences between the amount of sunlight blocked between the 2 of them. After our research we will conclude that sunglasses and glasses will have a difference.

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Idea:
To check if the different number of layers of the sunblock can block sunlight.
Hypothesis:
If the amount of sunblock applied on the beads increase, the more sunlight it blocks.
Materials needed:
1 brand of sunblock & uv beads
Steps
1)Put 3 different amounts of sunblock on 3 different beads.
2) Place the uv beads under the sun for a fixed period of time.
3)See if the bead changes colour. The amount of sunblock is too little if the bead changes colour.

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How the materials of different opacities affect the amount of UV light

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How the materials of different opacities affect the amount of UV light

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Idea: To check the effectiveness of different sunscreens using uv beads.

Add-on Idea: To find out the difference between sunscreen and sunblock.

Hypothesis: The slower the uv beads change colour, the better the effectiveness of the sunscreen blocking out the uv rays.

Materials needed: Three different types of sunscreen with the same spf & uv beads.

Method:

1) Apply a layer of the different sunscreens on each of the uv beads.
2) Place the uv beads under the sun for a fixed period of time.
3) The bead that changes colour the slowest has the most effective

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-To find out if The brightness of the room affects the beads and UV light
-how uv light from the beads affect our body by radiation
-accuracy of the glow in the dark beads

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https://science.howstuffworks.com/innovation/science-questions/question388.htm

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The environment needed for the glow beads to function.
If the glow beads have any harmful effects on living things.
If it is useful/true that it will block sunlight.

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So we can put the up beads in the dark for a certain period of time

then we put it out in the sun with two different type of clothing and we cover the beads each.

After some time when the two different pieces of clothings are removed check the brightness of the bead. The one that shines the brightest shows that the. Lot his not suitable to block out UV rays and it can protect the skin better.

When wore on the wrist and over the clothing, one can easily know how much UV Rays that you have consumed
Hypotesis: if the amount of light captured on the UV bead is a lot then the material of the clothing used is not appropriate to be wore when there is a lot of sunlight

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-how are the beads useful?
-investigate the maximum amount of light the uv beads can absorb
-if we can use the beads to find the intensity of the uv

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It’s due to the material called phosphors

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It’s due to the material called phosphors

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Phosphors can radiate light after absorbing light from other light sources like the sun.

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-we want to find out if glow in the dark beads run out of light
-Who makes the beads
-Why do they make the beads

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The first idea for the beads is to put it into the dark, for the entire duration to find out if the beads requires light to glow.

The second idea is to put the beads under artificial light(light bulb) to check if UV light is required to glow.

The third idea is to set the beads under the sunlight to find out if light from the sun is required to make the beads glow.

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- We want to investigate on what is the uses of these glow in the dark beads
- how are these glow in the dark beads made?
- how much light can the glow and the dark beads emit/how bright is it

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1. research on the ingredients used in sunscreen ( chemicals used )
2. effectiveness  of sunscreen and how safe it is
3. find out the accuracy of the uv beads
4. how much light can the uv bead absorb

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-Is the amount of light it emits effected by the amount of light is absorbs?
-how is the solar energy converted to the light that glows in the dark?
-what is the duration of the beads lifespan?

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https://www.jeweltailor.com/beads/glow-in-the-dark-glass-beads

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2,12,22,32

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https://www.stevespanglerscience.com/lab/experiments/uv-reactive-beads/

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https://science.howstuffworks.com/innovation/science-questions/question388.htm

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https://www.google.com.sg/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&ved=2ahUKEwjUmLeskv71AhVO7XMBHbUvAvEQFnoECAcQAw&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FUltraviolet-sensitive_bead&usg=AOvVaw3Kltzdfmb8HSXK95ns6XiR

https://www.stevespanglerscience.com/lab/experiments/uv-reactive-beads/

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contain phosphors which become safely energized when exposed to light

-the energy is slowly released the beads emit a small amount of light which radiates and provides the glow effect for a short period of time
https://science.howstuffworks.com/innovation/science-questions/question388.htm

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3 ideas we want to investigate about the beads and UV light

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3 ideas we want to investigate about the beads and UV light

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Effects of excessive uv light on people
How does sunscreen affect the amount of uv light on people
How does different amount of uv lights affect the brightness of the beads.

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7,17,27

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Glow in the dark beads contains a material called phosphors. Phospers can radiate light after they have gotten energy from the sun or another light source. The phosphors soak up energy from the light, and can radiate the energy as light

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The beads contain materials called phosphors. Phosphors can radiate light after they have gotten energy from the sun or another source of bright light. The phosphors soak up the energy from the light, and then they radiate this energy as light.

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https://www.wristband.com/content/the-science-behind-glow-in-dark-toys-materials/

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https://www.wristband.com/content/the-science-behind-glow-in-dark-toys-materials/

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Glow in the dark beads work because of a material called “phosphors” which radiate light
Source:google

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https://www.wristband.com/content/the-science-behind-glow-in-dark-toys-materials/

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It works when there is presence of UV Ray and the brightness of the beads reflects in the amount of UV Rays that the beads captured and stored How do UV beads work? The UV beads contain different pigments that change color when exposed to ultraviolet light from any source including the sun. ... Therefore, UV beads help to detect when UV light is present. Each bead will change color about 50,000 times before the pigment will no longer respond to UV light.

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It works when there is presence of UV Ray and the brightness of the beads reflects in the amount of UV Rays that the beads captured and stored How do UV beads work? The UV beads contain different pigments that change color when exposed to ultraviolet light from any source including the sun. ... Therefore, UV beads help to detect when UV light is present. Each bead will change color about 50,000 times before the pigment will no longer respond to UV light.

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Luminescence is what causes items to glow brightly when it's dark. Unlike charcoal, wood, or paper, which can all give off light when they burn hot, things that use luminescence emit light without needing heat. When you have something like a toy that glows in the dark, it can glow because it contains materials called phosphors. Phosphors can radiate light after they have gotten energy from the sun or another source of bright light. The phosphors soak up the energy from the light, and then they radiate this energy as light.

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it can glow because it contains materials called phosphors. Phosphors can radiate light after they have gotten energy from the sun or another source of bright light. The phosphors soak up the energy from the light, and then they radiate this energy as light.

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When you have something like a toy that glows in the dark, it can glow because it contains materials called phosphors. Phosphors can radiate light after they have gotten energy from the sun or another source of bright light. The phosphors soak up the energy from the light, and then they radiate this energy as light.

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https://science.howstuffworks.com/innovation/science-questions/question388.htm

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3,13,23,33

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10,20,30

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8,18,28,38

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9,19,29,39

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Hope u have fun doing something useful for yourself and the earth =)