Investigating conduction and convection in the lab by Lai Hui Min Staff https://padlet.com/lai_hui_min1/Bookmarks Predict, Observe and Explain en-us 2021-10-21 23:20:24 UTC 2022-02-22 00:48:57 UTC hello@padlet.com Let's respect this space. lai_hui_min1 https://padlet.com/lai_hui_min1/Bookmarks/wish/2054372294 Keep your post relevant and respectful.]]> 2022-02-18 01:27:36 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054372294 Name (Student A) and Name (Student B) lai_hui_min1 https://padlet.com/lai_hui_min1/Bookmarks/wish/2054373310 Experiment 1: Investigating conduction in different materials
Predict:
Observe:
Explain:]]> 2022-02-18 01:28:22 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054373310 Chok Anya https://padlet.com/lai_hui_min1/Bookmarks/wish/2054473812 Experiment 1: investigating conduction in different materials.

Predict: I think that the glass will conduct the least heat among all the materials
Observe: the glass conducted heat the slowest among all the materials.
Explain: Glass is a non-metal while the rest of the materials were metals. Non-metal is a poorer conductor heat than metal, hence glass conducted heat slower than the rest of the material.]]> 2022-02-18 02:49:29 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054473812 Alysha https://padlet.com/lai_hui_min1/Bookmarks/wish/2054475397 Experiment 2: Investigating convection in liquids
Predict: the dye will move in a circular motion
Observe: the dye moves down wards from the left.
Explain: as there is a heat source on the right, the water particles above the heat source will increase in volume and hence, a decrease in density. Therefore, the warmer water moves upwards and the less dense and cooler water moves to the bottom, bringing the dye particles with it. This creates a convection current.]]> 2022-02-18 02:50:39 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054475397 Sarah Lee https://padlet.com/lai_hui_min1/Bookmarks/wish/2054475737 Experiment 1: investigating conduction in different materials

Predict: Glass is the poorest conductor of heat among the other materials
Observe: heat conduction from fastest to slowest - aluminium, steel, iron, brass, glass
Explain: The aluminium rod conducts heat the fastest, so heat would be able to travel quickly from one end to another, thus causing the paper on the aluminium rod to turn blue first.]]> 2022-02-18 02:51:00 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054475737 rachael https://padlet.com/lai_hui_min1/Bookmarks/wish/2054475867 experiment2 
prediction : It will move in one direction.
observation : the dye moved in one direction
explaination : ]]> 2022-02-18 02:51:07 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054475867 Sze Tong https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476173 Experiment 1: Investigating conduction in different materials
Predict: I think glass will be the poorest conductor of heat and brass is the best conductor of heat.

Observe: The aluminium rod is the best conductor of heat.

Explain: The paper on the aluminium rod turned blue the fastest. Therefore, the aluminium conducts heat the fastest and is the best conductor of heat out of the materials.]]> 2022-02-18 02:51:21 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476173 Joyen https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476285 Experiment 2: Experimenting convection current
Predict: It will move in one direction. 
Direction: Left side
Observation: The inked water travels to the left creating a circular motion, as the water near the candle became hotter and less dense, it rises to the top, while the water on the left, is cooler and more dense, therefore sinking. As the hot water replace the cooler water, it creates a convection current in the water.]]> 2022-02-18 02:51:28 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476285 Emmalynn and lucas https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476338 Experiment 2: investigation convection in liquids
predict: the liquid would turn the colour of the dye and there would be a convection current moving in the same direction.
observe: the dye moved in one direction
explain: this is because the dye and colder and denser causing the dye to sink to the bottom while the hotter and less dense water rose

]]> 2022-02-18 02:51:31 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476338 Ming Bao and Jacob https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476555 Experiment 2: Investing convection in liquids
Predict: The dye will travel in a circular motion , it will rise from the left and sink on the right
observe:
Explain:]]> 2022-02-18 02:51:41 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476555 bryan and ayden https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476596 Experiment 1:Investigating conduction in different materials
Predict:brass will conduct the most heat among the four materials and the glass will conduct the least amount of heat among the four materials
Observe:The aluminium conduct the most amount of heat
Explain:Because the paper on the aluminium turned blue first]]> 2022-02-18 02:51:44 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476596 hendrik & zili https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476641 experiment 1 - investigating conduction in different materials

predict - the glass is the poorest conductor of heat among all the materials
observe - the aluminium was the best conductor of heat 
explain - aluminium gained heat the fastest rate compared to other materials.]]> 2022-02-18 02:51:46 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476641 sheca https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476647 Experiment 2: investigating convection in liquid 
Predict: the dye will get mixed up in the water
Observe: the dye moved the left side
Explain: the heat source is placed on the right side of the tube. the water would gain heat and its volume would increase and the density would decrease. the water becomes less dense and floats up. the water from the other side with the dye is denser and sinks down. this creates a convection current. ]]> 2022-02-18 02:51:46 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476647 Arsa https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476702 Experiment 1: Investigating conduction in different materials

Predict: Brass - Best conductor, Glass - Worst conductor

Obverve: Aluminum/Steel (idk) - Best conductor

Explain: Aluminium/Steel are better conductors of heat as compared to the other materials. This meant that it gained heat from the fire at a faster rate as compared to the other materials

I thought brass was going to be the best conductor of heat because it is used to make part of the bimatallic strip. It's supposed to be the better conductor right? Iron was supposed to be the poorer conductor

Maybe brass is simply just a worse conductor of heat as compared to aluminium or steel]]> 2022-02-18 02:51:49 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054476702 Leon https://padlet.com/lai_hui_min1/Bookmarks/wish/2054477829 Experiment 1: 
predict: glass poorest conductor of heat brass is best conductor of heat

]]> 2022-02-18 02:52:44 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054477829 luzman and nicholas lim https://padlet.com/lai_hui_min1/Bookmarks/wish/2054478123 experiment 1: investigating conduction in different materials
predict: i think that the glass is the poorest conductor of heat among all the materials
observe: the paper on the aluminium took the shortest time to turn blue while the paper on the glass took the longest
explain: aluminium is the best conductor of heat while glass is the worst among all the materials]]> 2022-02-18 02:52:56 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054478123 Ron https://padlet.com/lai_hui_min1/Bookmarks/wish/2054478398 Experiment 2: Investigating convection in liquids
Predict: The dye will travel in a circular motion.
observe:
explain]]> 2022-02-18 02:53:11 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054478398 Carina https://padlet.com/lai_hui_min1/Bookmarks/wish/2054479896
Experiment 2: Investigating convection in liquid
Predict:it will move in circular motion
Observe:
Explain;the liquid in the right side gain heat and expanded.Thus the density of the liquid at the right side is lower,which leads to the liquid going upwards.The liquid on the right side is cooler and denser, thus it will sink down.
]]> 2022-02-18 02:54:27 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054479896 Lim Xi En https://padlet.com/lai_hui_min1/Bookmarks/wish/2054483848 Experiment 3: Investigating convection in gases

Predict: there will be hot smoke coming out

Observe: there is hot smoke coming out of the other hole

Explain: the cold gas is denser than the hot air and therefore it sinks down, causing it to gain heat and expand ,replacing the hot air which is less dense, hence it rises up.]]> 2022-02-18 02:57:42 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054483848 Jun Yong https://padlet.com/lai_hui_min1/Bookmarks/wish/2054484957 Experiment 3 : Investigating convection in gases

Predict: Hot gases coming out
Observe: Hot gases coming out from the other side
Explain: Cold gases is more dense so it sink and reach the fire which give heat and turn into hot gases which is less dense so it rise up]]> 2022-02-18 02:58:40 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054484957 https://padlet.com/lai_hui_min1/Bookmarks/wish/2054485246 observe:steel is the best conductor of heat]]> 2022-02-18 02:58:56 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054485246 Izzy https://padlet.com/lai_hui_min1/Bookmarks/wish/2054485833 Experiment 1: Investigating conduction in different materials.
Predict: I think glass will be the poorest conducter of heat.
Observe:The aluminuim conducted the most heat.
Explain:]]> 2022-02-18 02:59:26 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054485833 hadif and nicholas taniwan https://padlet.com/lai_hui_min1/Bookmarks/wish/2054486861 Experiment 2 :  experimenting convection in liquid The dye will move in a circular motion]]> 2022-02-18 03:00:25 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054486861 licia and ethan ho_jung_yeung_ethan https://padlet.com/lai_hui_min1/Bookmarks/wish/2054487011 experiment 1: investigating conduction in different materials.
prediction: the brass will conduct the most heat.
observe: the paper on the aluminium turned blue first
explain:aluminium conducts heat faster than the other rods so the heat transfers faster from the rod to the papaer so the paper turns blue first.]]> 2022-02-18 03:00:34 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054487011 Jacob and Ming Bao ham_chim_peng https://padlet.com/lai_hui_min1/Bookmarks/wish/2054487334 The cooler coloured water loses heat and contracts, thus the volume decreases and the density increases, so the cooler water sinks. The hotter air at the bottom gains heat and expands, thus the volume increases and the density decreases, so the hotter water rises. This creates a convection current shown.

(Video file was too big to post)]]> 2022-02-18 03:00:52 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054487334 Irdina https://padlet.com/lai_hui_min1/Bookmarks/wish/2054488034 Experiment 1: Investigating conduction in different materials
Predict: paper on glass will turn blue last
observe:  paper on the aluminium turned blue first
explain: aluminium conducts heat better than glass]]> 2022-02-18 03:01:33 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054488034 leon https://padlet.com/lai_hui_min1/Bookmarks/wish/2054498789 experiment 2
dye gets sucked down towards heat source due to a convection current

]]> 2022-02-18 03:10:53 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054498789 hillary & jingxuan https://padlet.com/lai_hui_min1/Bookmarks/wish/2054499470 experiment 3: investigating convection in gases
predict: the smoke will travel down to the side with a candle
observe: the smoke travelled thru the air vent & out of the other tube which had a candle below it
explain: the smoke entered thru the cooler tube to the candle where the air there was heated up. the smoke as then carried thru the hot air and up the other tube. this is because hot air is less dense and thus rises to the top, while cooler air is denser & sinks, replacing the hot air.]]> 2022-02-18 03:11:13 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054499470 Xin li and Stephanie https://padlet.com/lai_hui_min1/Bookmarks/wish/2054500116 Experiment 2: Investigating convection in Liquid
Predict: the liquid will move in a circular motion
Observe: the blue dye travelled slowly through the bent tube.
Explain: As the heated water in the tube expands, its volume increases,which results in a decrease in density, the hotter water rises up and the cooler dye at the top will sink down to the bent section of the tube as it is less dense, thus there is the observation of the blue dye moving downwards.]]> 2022-02-18 03:11:45 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054500116 Fione https://padlet.com/lai_hui_min1/Bookmarks/wish/2054501647 Experiment 1: Investigating conduction in different materials
Predict: Glass is a poor conductor of heat, which conducts heat the slowest, while brass is the best conductor of heat, which conducts heat the fastest.
Observe: The paper on the aluminium rod conducts the most heat as the paper turned blue the fastest.
Explain: In the experiment, aluminium is the best conductor of heat, causing it to gain heat the fastest among the different materials. Hence, aluminium conducts heat the fastest, causing the paper to turn blue the fastest. ]]> 2022-02-18 03:13:02 UTC https://padlet.com/lai_hui_min1/Bookmarks/wish/2054501647