Summary by Mrs Khan

Charmaine Lim

2014-09-23 13:26:59 UTC

-->I learnt that we should save electricity as the smoke from burning coals to make electricity pollutes the environment. Also, your electricity bills would be lower (textbook). I learnt that the correct way to say that the bulb exploded is that the bulb fused ( Jing Jing's note). Conductors of electricity are water, metal and graphite (textbook). Insulators of electricity are wood, glass, plastic, etc. (textbook). I also learnt that tungsten was actually not a good conductor of electricity, it can produce light as it can withstand strong heat (Mrs Khan's toondoo).

Tan Hong Zhang

2014-09-25 09:38:46 UTC

I learnt that using charcoals to produce electricity is a bad idea but we have

no choice as we have to burn to produce electricity. The smoke will then pollute

the air(textbook). Bulb fuses when the voltage gets too high(Research). Water is a

good conductor of electricity(textbook).

Loise Gabriel

2014-09-25 12:28:30 UTC

I learnt that amperage (amp) is the number of electrons in a circuit

and volts is the pressure (or power) in a circuit. (research)

I also learnt that tungsten is a conductor of

electricity AND heat. (further research)

And I ALSO learnt that skin is NOT a conductor of electricity, but is

still vulnerable to shock. (textbook)

Tan Yi Qian

2014-09-26 00:40:24 UTC

I learnt that water is a conductor of electricity and

not all solid is a conductor of electricity examples like wood and plastic.

When the switch is a close circuit, the bulb will light up while it is a open

circuit, the bulb will not light up . The close circuit allows electric current to

flow. A parallel circuit is brighter then a series circuit.

Cheyenne

2014-09-26 00:40:33 UTC

I learnt that a circuit needs batteries, wires and bulbs to work. Also, with a closed circuit, the light bulb might not light up as the batteries might be put in the wrong way. Plastic, glass are examples of insulators of electricity, while metals are examples of conductors of electricity

Cheryl

2014-09-26 00:40:42 UTC

I learnt the different conductors and insulators of electricity

insulator-wood conductor- water. I also learnt that a closed circuit not necessarily need a light bulb and a closed circuit only needs batteries and wires.

Bulbs arranged in a parallel circuit would be brighter then bulbs arranged in a series arrangement

I also learnt that batteries have a negative and positive terminal.

Elrond

2014-09-26 00:40:44 UTC

I learnt:

Batteries have a negative and postive side.

Electricity can come from lightning

If a bulb receives too many volts, it will fuse.

Electricity flows from the negative side of the battery to the psotive side of the battery.

Metal conducts electricity while wood,glass,plastic,paper etc. are insulators of electricity.

Tan Kian Ann

2014-09-26 00:40:46 UTC

I learnt an electric circuit needs a battery and wires, and that tungsten is not a good conductor of electricity. I also learnt that water can conduct electricity. Electricity is running out soon, so we have to save them by switching off electical appliances when they are not in use.

Tan Wen Xuan

2014-09-26 00:40:47 UTC

I learnt that the tungsten is not a good conductor of

electricity. It can light up as when electricity passes through it,

the tungsten heats up and gives off light. It is a good material

to use as its melting point is higher than other materials. All metals

are conductors of electricity but there are other things that conduct electricity like water and graphite.

Ng Liang Pin

2014-09-26 00:40:48 UTC

I learnt that tungsten is a poor conductor of electricity.

It(tungsten) can withstand about 3000 volts while other

metals could not. Other metals could only withstand

about 1000 volts.

Crystal

2014-09-26 00:41:07 UTC

I learnt that electricity is a form of energy that powers electronical devices. A circuit allows electricity to flow through. A basic circuit is made up of a few basic objects e.g. batteries/ wire/ bulb. Conductors of electricity allow electricity to flow through it easily, especially metals. However, there are other non-metals that allow electricity to flow such as water, carbon ,graphite etc. The light bulb is made up of a metal tip, metal casing, glass casing and a filament. The filament, usually made of tungsten, is actually a poor conductor of electricity that is able to withstand high temperatures.

Clarence (Clay)

2014-09-26 00:41:09 UTC

I learnt that a closed circuit is considered as a closed circuit

if electric current is able to flow. Metals are good conductors

of electricity while plastic and other materials are poor

conductors of electricity. Water can also conduct electricity.

Bulbs arranged in parallel light up more brightly than bulbs

arranged in series. Tungsten is used in bulbs NOT because

it is a poor conductor of electricity, but because it has a very

very high melting point.

Yen Shyuan

2014-09-26 00:41:10 UTC

I learnt that we should use energy saving bulbs to save electricity. I also learnt that a circuit can only consist of wires and batteries only. I learnt that lightning is a natural source of electricity. Our body is a poor conductor of electricity as we also can get electric shocks.(not that our body is NOT a conductor of electricity, but our body is a POOR conductor of heat.) Batteries also has positive and negative poles. There is electric charge if the positive and negative poles comes in contact with each other. Conductors of electricity are:water, metal and graphite. (Research) and insulators of heat are:wood, glass, plastic etc.(textbook)

Alicia Cheng

2014-09-26 00:41:13 UTC

I learnt the different conducters and insulators of electricity. Eg. wood(conducter), Metal(insulator) and more

I learnt that an electric circuit has to consist of a battery, wire, bulbs, in order for the bulb to light up.

I also learnt that tungsten is a conducter of electricity so that electricity is able to pass through to reach the batteries.

Denzel

2014-09-26 00:41:26 UTC

Batteries can be arranged in a parallel or series arrangement

Bulbs can be arranged in a parallel or series arrangement

Electricity can flow only if it is a closed circuit

Metals are conductors of electricity

Non-metals are insulators of electricity

2014-09-26 00:41:36 UTC

Tan ya xuan.

2014-09-26 00:42:00 UTC

I learnt that electricity is one of the most basic forms of energy.It is composed of two forms,neutrons and electrons.Because of this, electricity is important for our daily routines everyday.There are also materials that are associated with electricity. they are called conductors/non-conductors of electricity e.g(iron,cloth, graphite wood...etc.) I have also learnt that electricity flows better in bulbs with parallel circuits as not only will it be brighter, when one bulb fuses,the others will still remain lit.This is why bulbs with parallel circuits are commonly installed in most households.

Phu Xien

2014-09-26 00:42:00 UTC

I learnt that when a circuit does not let electricity to flow through completely,

it is considered as an open circuit.( adapted from textbook)

I learnt that metals are good conductor of electricity but non-metals are not.

Metals are good conductors

of electricity because the electrons are free to move in a
network of metal atom. So because of the "Sea of Electrons", these electrons do
not belong to just one atom but move freely about the metal's network which
makes them great conductors of heat and electricity. (copied from Yahoo! Answers)

I also learnt that cicuits can be put in

parallel or series

Brandon Cheah

2014-09-26 00:42:05 UTC

I learnt that it is the .amps that kill you, not the voltage. I learnt about conductors of electricity. I learnt that water is a conductor of electricity too, and Tungsten is not a conductor of electricity and is being used as filaments of light bulbs solely because of its ability to withstand a very high temperature.

Haidah

2014-09-26 00:42:19 UTC

I learnt that how to use electricity wisely, parts of an

electric circuit and what is it made up of. I learnt the conductors and insulators of electricity. For example water is a conductor of electricity. I learnt that we should conserve electricity by turning off the lights and fans if not in use.

Melden (Meow)

2014-09-26 00:42:20 UTC

I learnt that an electric circuit is only considered a closed circuit when it provides an uninterrupted or endless path for the flow of electric current.I also learnt that water is also a good conductor of electricity.When batteries are placed in parallel all the positive terminals are joined together with a single wire to one part of the circuit, and all the negative terminals are joined with a single wire to the rest of the circuit.

Rafi

2014-09-26 00:42:25 UTC

I learnt that a circuit is made of wires, batteries and light bulbs. I also learnt that conserving energy is very important to save the world from global warming. I also learnt that different materials can conduct electricity but all of them does not conduct electricity at the same way. I also learnt that water is a pretty good electric conductor.

Daniel Loh

2014-09-26 00:42:26 UTC

I learnt what makes up an electric circuit and tungsten is not a good

conductor of electricity.Water is also a conductor of electricity so it is dangerous

to stay in a pool when there is lightning.

Emily Chai

2014-09-26 00:42:33 UTC

I learnt that a closed circuit is a circuit that works and a open circuit is a circuit that cannot work. Using charcoals to produce electricity is a bad way as burning charcoals will produce smoke and it will pollute the air. Light bulbs arranged in parallel is brighter than bulbs arranged in series.

Bernice Ang

2014-09-26 00:42:39 UTC

I learnt that water can also be a conductor of electricity

I also learnt that if the bulbs or battery are placed in the

wrong way,electricity will not be able to pass through the circuit.

I learnt how to construct a circuit.A basic circuit actually consists

of a light bulb,batteries and wires.

WongEeShawn

2014-09-26 00:43:05 UTC

I learnt that a battery stores energy

and can be used to power light bulbs,

and tungsten is not a good conductor

of electricity and can emit light

lim yi ning(morning glory)

2014-09-26 00:43:08 UTC

i learnt that wind energy can be transformed into electricity.our skin has moisture which allows us to conduct electricity and so we get electric shock

insulators of electricity are(materials):tungsten(which is used in light bulbs as it can withstand the heat),plastic,wood,fabric.

conductors of electricity:copper,steel,nickel,carbon,iron,graphite.

Gabriel Tan (Gbear)

2014-09-26 00:43:13 UTC

I learnt that a simple electric circuit consist of a switch,a light bulb, a battery and wires.

We should also use LED light bulbs instead of florescent light bulbs as LED light bulbs

consume less electricity and also lasts longer.All types of metal can conduct electricity.

Whereas,non-metals like,wood,glass and plastic do not conduct electricity. We should

not touch an electric appliance when our hands are wet.

Asher

2014-09-26 00:43:29 UTC

I learnt that electricity is the set of physical phenomena associated with the presence and flow of electric charge. Electricity gives a wide variety of well-known effects, such as lightning, static electricity, electromagnetic induction and electrical current.

Jetty

2014-09-26 00:44:22 UTC

I learnt that batteries have negative and positive sides.I also learned that if a bulb has to much electricity, it will fuse!I also learnt about the parts of bulbs,and our hand can conduct electricity.

hong wei

2014-09-26 00:44:29 UTC

l learnt that skin can conduct electricity.

I learnt that ampere can kill u

i learnt that water is a good conductor of heat

Ng Liang Pin

2014-09-26 00:44:39 UTC

I also learnt that batteries in series arrangement will make the

bulbs brighter than bulbs of batteries in parallel arrangement

(although not covered in syllabus). On the other hand, bulbs in parallel

arrangement will be brighter than bulbs in series arrangement.

Freesia Shee

2014-09-26 00:45:25 UTC

I learnt about circuits and how electricity flows in them. conductors and insulators of electricity, and how we use charcoals to produce electricity.

Kai Hin

2014-09-26 00:46:36 UTC

I learnt that tungsten is not a conductor but is a insulator.It can light up when electric current passes through it.it heats up and emits light

ignatius

2014-09-26 00:46:43 UTC

I learnt that a closed circuit is considered as a closed circuit even without a switch.

. Metals are good conductors

of electricity while plastic and other materials are poor conductor of electricity

conductors of electricity. A bulb arranged in a parallel way lights up brighter than those that are arranged in a series

Brendan Tan_BTEH

2014-09-26 00:46:54 UTC

1.I learnt that graphite can conduct electricity, but at a very high voltage.

Teo Jing

edptjj — 2014-09-26 00:47:40 UTC

I learnt that bulbs in parallel is brighter than bulbs in series. We should save electricity as smoke can pollute the enviroment. I also learnt that only a closed circuit will let electricity flow through

brandon Goh

2014-09-26 00:47:49 UTC

I learnt that conductors of electricity are normally made of metal. conductors of electricity can be plastic , wood or glass.I also learnt that batteries and wires together is still a circuit .

Joanne

2014-09-26 00:47:59 UTC

I learnt that water is an insulator of electricity ( Textbook) .

I learnt how to construct a circuit .

To construct a basic circuit , you will need a bulb , some batteries and some wires .

If batteries are placed facing each mother in a circuit , electricity will not be able to pass through, therefore the bulb in the circuit will not light up.

Lim Zhi yu

2014-09-28 06:42:42 UTC

I learnt about electric circuits.I also learnt that there are two types of circuits, series and parallel.

I learnt that there are two sides of a battery. I also learnt that even if one bulb fuses in a parallel arrangement the other bulbs will still light up while in a series arrangement if one bulb fuses the other bulbs will also fuse.

Chang Jen Ning

2014-09-28 08:22:49 UTC

I learnt that electricity is produced in a power station and reaches our homes through underground cables.(Textbook) Light bulbs arranged in parallel are brighter than light bulbs arranged in series. I should also conserve electricity by using energy saving bulbs instead of filament bulbs. They use less electricity. I also learnt that water is a conductor of electricity.

Nicole

2014-09-28 13:58:51 UTC

I learnt that in electrical circuit, the parallel arrangement is brighter than the series arrangement.(textbook). If two negative sides of two batteries is fixed together, the bulb cannot light up. Conserving electricity is easy. We can do it by using energy saving bulbs instead of our normal "filamental" bulbs. I also learnt that in the parallel arrangement, if a bulb fuses, the other bulbs can continue to light up. Most of the conductors of electricity as I have learnt in the textbook, is usually made of metals. But other materials can be conductors of electricity too In my opinion, my theory is that water is an insulator of electricity (textbook).