This is what we have covered for today. I need you to read through and reflect upon the following:
1) Other states of mater:
Fourth State: Plasma
Fifth State: Bose-Einstein state of matter
Sixth State: Quantum spin liquids
2) Online Classroom Debate
Should we include all sixth states of matter into our school textbooks? Are you primary 4 pupils able to learn all six states of matter? What is your stand on this? Why?
3) Measuring volumes for solid
Solid could be categorised into two different groups - regular solids and irregular solids. To measure volume of regular solids, we can apply the mathematical formula : Base area x Height. To find out the volume of irregular solids, we can use the displacement method (as mentioned by Harini during class). When you put an object into the cylinder filled with water, the water is being displaced (or pushed out) by the object.
How about measuring the volume of spongebob?
4) Measuring volumes for liquids
On the other hand, liquids vary in viscosity. Some liquids are more viscous (thick) while some are less viscous (thin or watery). Examples of highly viscous liquids include melted chocolate, ketchup and oil while. Examples of less viscous liquids includes water, milk and soy sauce.
Measuring instruments to measure volumes include the measuring cylinder, micropipette, burette and syringe.
5) Measuring volumes for gases
We can use a gas syringe to measure volumes of gases. But could you think of other ways to measure volumes of a gaseous substances like air?
6) Create a measuring cylinder
Today, we learnt about how scientists invent the measuring cylinder. Is Albert Einstein the one who invented the measuring cylinder? Not all scientists are the same. We should respect them and appreciate their efforts in sharing their inventions to improve our lives. Without the invention of the measuring cylinder, how is it possible for future scientists to work with chemicals to produce new products such as perfumes and oil? Who invented the measuring cylinder, then?
7) How to read volumes of liquids accurately using measuring cylinder
First, we need to level our eyes with the water level of the liquid and locate the meniscus of the liquid (curvature of the liquid).
8) Experiment: Liquids has a definite volume but no definite shape.
We learnt that liquid takes the shape of the container. We also know that the volume of a liquid can' be changed.
If you have further questions about today's lesson, please feel free to leave your questions in the comment box below.
A little treat for all of you...
Here's a video on how coke in its liquid state could turn into ice (solid state) instantly upon shaking.
1: ?? I understand Plasma but not Bose-Einstein state of matter and Quantum spin liquids
ReplyDelete2: We should learn all six state of matter as we already learn the three main states of matter
3: I think Harini can become a mathematican next time as it idea is feasible .
4:How much is microlitres, nanolitres , and the other one ??
5:There are two primary properties of air that can be measured: flow and pressure. Barometers measure pressure, while there are several different techniques you can use to measure flow. Chemical smoke, or a wind velocity meter, is often used to measure air flow. Volume can also be measured, but this measurement is usually coupled with a measurement of pressure.
Determine the volume of air in a given space with the use of a round balloon. This method will enable you to determine the volume in the space of an expanding sphere. Knowing how to use the volume of a sphere plays a critical role in measuring air volume. This formula: (4/3)πr3 uses the radius to determine the volume. The symbol π represents the number pi which roughly equals 3.14. Derive the radius from the distance around the balloon then apply it to the volume formula to find the air volume.
Source from ehow.com
6:Linus Yale Jr. Invented the measuring cylinder
Albert Einstine Invented the Graduated Cylinder in 1009
Source from : wiki .answers.com
7:is there another way of saying meniscus
8:can we make liquids like coke into ice ?
I meant Albert Einstien
Deletewe can make coke into ice
DeleteLiquid--Cool temperature--Solid--Heat--Gas!
DeleteCommendable effort there! I'm glad that you reflected upon the lesson and even went to do your own independent research to learn more about this topic! But do try to use your real name here as I'm not able to remember so many of your online nicknames.
Delete1) Yes, the fifth state and sixth state of matter requires you to understand what certain science concepts before you can comprehend what it actually means.
2) I agreed with you that we should all learn 6 states of matter. However, sixth state of mater is discovered just a year ago and it requires more scientists to do further research on it to prove it so that it becomes a fact.
3) Harini can become a mathematician, so can you. Who are you not to be ? :)
4) A microlitre of water is smaller than the volume of one droplet of water. So could you imagine the volume of one nanolitres and one picolitres may look?
5) That's right. You can fill a balloon with air til it forms a sphere which is a regular shape. Then using the mathematical formula, you will be able to find the volume of the sphere.
6) In other words, Xue Yin is right. Albert Einstein did invent the graduated cylinder. It is also great that you quoted the source of your research findings. Quoting sources of information increases your reliability of your findings online.
7) Another way for meniscus is surface curvature of liquids.
8) Sure, i've included in the video in this blog post for everyone to view.
Miss Dee
I am Bernice *_*
DeleteWhat is the 5th and 6th stage of matter
ReplyDeleteIs it fermionic condensates.
ReplyDeletewe should not include it as it is too hard
ReplyDeleteI forget to read
ReplyDeleteThat's okay :)
DeleteMiss Dee
I found out that a Bose-Einstein state of matter is of a dilute gas of bosons cooled to temperatures very near absolute zero, but what does that mean?
ReplyDeleteSo based on the sentence itself, bosons,a type of gas,is being cooled to very low temperatures. You might want to read this online article on Bose-Einstein state of matter written for children.
Deletehttp://www.chem4kids.com/files/matter_becondensate.html
Miss Dee
Online Classroom Debate
ReplyDeleteI stand on both side.I do not think that P4 must learn so much & may be some of us will mix up all the states if we learn all at one go but I feel that it is also good to learn all.
But you think that you agree to change the textbook thinkof the P4/1 students!!!!!!
Think of others before yourself!
Yes, think of others before yourself. In other words, do you agree to both sides of the argument? It might not be easy for everyone to understand the fifth state and sixth state of matter. Perhaps that's why all 9 and 10 year olds only learn about 3 states of matter. The same goes for other pupils studying in other countries. However, in my opinion, I do believe that the textbook will include the fourth state of matter, that is plasma, in the near future. What do you think? Could all 9 or 10 year olds in Singapore handle this?
DeleteMiss Dee
? is Yu Xuan
ReplyDeleteMiss Dee, You put some as som .
ReplyDeleteThank you for highlighting the spelling error. I've already make changes to it.
DeleteMiss Dee
Ms Dee,to measure the chocolate u can put in the food wrap into the cylinder & measure it,after that u pull out the wrapping paper.
ReplyDeleteGood improvisation there! Measuring the volume of melted chocolate is not that difficult afterall! However, the food wrap has to be tightly sealed to prevent water from entering.
DeleteMiss Dee
I think it'll be fun learning these other states at P4 but it'll be better if we learn learn it at P5 because we'll understand it better,like Ms Zhou says we learn to walk then run.
ReplyDeleteNice one, Anan. We should all start from the basics first, then move on to learn something more difficult which is what exactly you are doing now. In primary 3 and 4, you learn about the states of matter. In secondary 1, you will learn about what tiny particles (or atoms) are and what's inside these atoms.
DeleteBecause there's still so much things to learn out there! What's more important is our passion to learn. I hope that all of us here would continue to keep this passion to learn alive.
Miss Dee
Ms Dee,I found out that if a liquid is thick and you pour it to a cup ,and if you want to pour it away , it is hard to come out.
ReplyDeleteAnd...
If the liquid is watery and you pour it to a cup , and if you want it away , it is easy to come out.
You've got it, Andrew! Highly viscous liquids flows at a slower rate while less viscous liquids flows at a faster rate.
DeleteMiss Dee
SpongeBob is one cubic centimetre (cm3)
ReplyDeleteAs a matter of face, yes! According to the diagram, spongebob has a volume of one cubic centimetre. But is this figure realistic? How small is 1 cubic centimetre?
DeleteMiss Dee
This comment has been removed by the author.
DeleteI do not know how small is 1 cubic centimeter is ?
ReplyDelete1 cubic centimetre * 1000 = 1 litres?
DeleteYes, 1000 cubic centimetres = 1 litres.
DeleteMiss Dee
0.001 litres
ReplyDelete=1000 microliters
=100000 nanolitres
=10000000 picolitres ?
Is it correct ,Ms Dee?
DeleteQuite close, Andrew!
Delete1 ml = 1000 microlitres
1 ml = 1000 000 nanolitres
1 ml = 1000 000 000 picolitres
??
DeleteMs Dee.....
ReplyDeletePlasma(from Greek πλάσμα, "anything formed"[1]) is one of the four fundamental states of matter (the others being solid, liquid, and gas). Heating a gas may ionize its molecules or atoms (reducing or increasing the number of electrons in them), thus turning it into a plasma, which contains charged particles: positive ions and negative electrons or ions.[2] Ionization can be induced by other means, such as strong electromagnetic field applied with a laser or microwave generator, and is accompanied by the dissociation of molecular bonds, if present.[3]
The presence of a non-negligible number of charge carriers makes the plasma electrically conductive so that it responds strongly to electromagnetic fields. Plasma, therefore, has properties quite unlike those of solids, liquids, or gases and is considered a distinct state of matter. Like gas, plasma does not have a definite shape or a definite volume unless enclosed in a container; unlike gas, under the influence of a magnetic field, it may form structures such as filaments, beams and double layers. Some common plasmas are found in stars and neon signs. In the universe, plasma is the most common state of matter for ordinary matter, most of which is in the rarefied intergalactic plasma (particularly intracluster medium) and in stars. Much of the understanding of plasmas has come from the pursuit of controlled nuclear fusion and fusion power, for which plasma physics provides the scientific basis.
Ms Dee....
ReplyDeleteIn condensed matter physics, quantum spin liquid is a state that can be achieved in a system of interacting quantum spins. The state is referred to as a "liquid" as it is a disordered state in comparison to a ferromagnetic spin state,[1] much in the way liquid water is in a disordered state compared to crystalline ice. However, unlike other disordered states, a quantum spin liquid state preserves its disorder to very low temperatures.[2]
The quantum spin liquid state was first proposed by physicist Phil Anderson in 1973 as the ground state for a system of spins on a triangular lattice that interact with their nearest neighbors via the so-called antiferromagnetic interaction. Quantum spin liquids generated further interest when in 1987 Anderson proposed a theory that described high temperature superconductivity in terms of a disordered spin-liquid state.[3] A quantum spin liquid state was first realized experimentally in crystalline herbertsmithite by Young Lee and his group at the Massachusetts Institute of Technology in December 2012.[4]
Ms Dee....
ReplyDeleteA Bose–Einstein condensate (BEC) is a state of matter of a dilute gas of bosons cooled to temperatures very near absolute zero (0 K or −273.15 °C[1]). Under such conditions, a large fraction of the bosons occupy the lowest quantum state, at which point quantum effects become apparent on a macroscopic scale. These effects are called macroscopic quantum phenomena.
Although later experiments have revealed complex interactions, this state of matter was first predicted, generally, in papers by Satyendra Nath Bose and Albert Einstein in 1924–25. Bose first sent a paper to Einstein on the quantum statistics of light quanta (now called photons). Einstein was impressed, translated the paper himself from English to German and submitted it for Bose to the Zeitschrift für Physik, which published it. (The Einstein manuscript, once believed to be lost, was found in a library at Leiden University in 2005.[2]). Einstein then extended Bose's ideas to material particles (or matter) in two other papers.[3] The result of the efforts of Bose and Einstein is the concept of a Bose gas, governed by Bose–Einstein statistics, which describes the statistical distribution of identical particles with integer spin, now known as bosons. Bosonic particles, which include the photon as well as atoms such as helium-4 (4He), are allowed to share quantum states with each other. Einstein demonstrated that cooling bosonic atoms to a very low temperature would cause them to fall (or "condense") into the lowest accessible quantum state, resulting in a new form of matter.
In 1938 Fritz London proposed BEC as a mechanism for superfluidity in 4He and superconductivity.[4][5]
In 1995 the first gaseous condensate was produced by Eric Cornell and Carl Wieman at the University of Colorado at Boulder NIST–JILA lab, using a gas of rubidium atoms cooled to 170 nanokelvin (nK) [6] (1.7×10−7 K). For their achievements Cornell, Wieman, and Wolfgang Ketterle at MIT received the 2001 Nobel Prize in Physics.[7] In November 2010 the first photon BEC was observed.[8]
This transition to BEC occurs below a critical temperature, which for a uniform three-dimensional gas consisting of non-interacting particles with no apparent internal degrees of freedom is given by:
T_c=\left(\frac{n}{\zeta(3/2)}\right)^{2/3}\frac{2\pi \hbar^2}{ m k_B} \approx 3.3125 \ \frac{\hbar^2 n^{2/3}}{m k_B}
where:
\,T_c is the critical temperature,
\,n is the particle density,
\,m is the mass per boson,
\hbar is the reduced Planck constant,
\,k_B is the Boltzmann constant, and
\,\zeta is the Riemann zeta function; \,\zeta(3/2)\approx 2.6124. (sequence A078434 in OEIS)
Yes Andrew. Thanks for sharing the information with us but it would be much better if you could simply share with us the link of where you get the information from rather than copy and pasting the information here. What you are doing right now could be considered as plagiarism which refers to an act of copying other people's information without citing where is it from! Do be mindful of it,yeah!
DeleteYou can do that but you must type in the source .
DeleteEg : source from : www.wikipedia.org
that is a great video
ReplyDeleteNO Bernice,? is not me.
ReplyDeleteMiss Dee,why does the coke become ice?
ReplyDeleteThe coke was placed in the freezer and was taken out of the fridge just before it turns into ice.
ReplyDeleteMiss Dee
I think the volume of spongebob is not accurate as sponge can absorb water.
ReplyDelete