# data[].attributes.body
The switch can control whether the bulbs light up

# data[].attributes.body
If the switch is open, the bulb would not light up.

# data[].attributes.body
- closed and open circuit
- how a switch works
- terminals of batteries
- higher voltage means stronger current
- electricity flows in a current
- electricity flows from the negative terminal to the positive
- electricity generates energy and heat

# data[].attributes.body
1. there is a positive and negative terminal in a battery.
2. there has to be an energy source in a circuit for a bulb to light up.
3. there has to be wires for the electricity to flow through.
4. there is a series and parallel way of setting a circuit.
5. the wires should touch the tip and metal casing of the bulb.
6. the filament is made of wires
7. most conductors are metal.
8. there is a certain type gas in the bulb
9. you don't need the switch for a circuit, it's optional
10. the wire is made of wire.
11. the wire is covered with rubber.
12. the wires should touch each other in order for the bulb to work.
12. the size of a battery doesn't mean how strong the magnet is.
13. there are batteries which is more than 1.5 voltage
14. the units of batteries are voltage
15. we are conductors of electricity but we are not good at conducting electricity and after a long period of time it will affect our health.

# data[].attributes.body
There can be a parallel circuit or a series circuit

# data[].attributes.body
The electrical system is made out of a battery, a switch, wires and a light bulb.
Battery:
The battery is the power source for the electrical system.
Switch:
The switch controls the movement of the electricity flowing
Wire:
The wires allow the electricity to flow through it from the bulb.
Light Bulb:
The light bulb will emit light and heat when there is a closed circuit and when every component of the electrical system is working all right. Also, if you want the light bulb to light up, the wires must be touching the metal tip of the bulb and the metal casing on it.

# data[].attributes.body
I remember the entire electrical system which consists of the switch,the battery,the bulb and the wire.I also remember some conductors and insulators of electricity and materials used to make each part of the items in the electrical system.

# data[].attributes.body
the more bulbs connected in series, the dimmer the bulbs are

# data[].attributes.body
1. Batteries are a source of energy
2. Wires connect different components of the electrical system for electricity to flow through
3. The switch controls the flow of electricity in an electric circuit
4. Electricity can only flow in a closed circuit
5. Electricity cannot flow in an open circuit
6. The bulb is made out of glass
7. The filament of the bulb is made of tungsten as it has a high melting point
8. Electricity flows from the positive terminal of a battery to the negative terminal of a battery
9. Wires must be connected to both the metal casing and the metal tip of the bulb for the bulb to light up
10. The outer part of the wire is made out of rubber to prevent electric shocks
11. The inner part of the wire is made out of copper as it is cheap and is one of the best conductors of electricity
12. All metals are electrical conductors
13. Electrical conductors allow electricity to flow through them
14. Most non-metals are electrical insulators. Electrical insulators do not allow electricity to pass through them.
15. Circuit testers can be used to test if a circuit is open or closed
16. The size of the battery does not affect how strong it is
17. The voltage of the battery affects how strong it is
18. Batteries can come in different shapes and sizes

# data[].attributes.body
an electrical system has a battery, electrical wires, switch, bulb. It can be a system without a switch also. the wire should go through the metal tip of the bulb, connect to the filament, and go through the metal casing of the bulb. Metals are conductors of electricity and wood, plastics etc are insulators( non-conductors ) of electricity.

# data[].attributes.body
1. The electrical system consist of a battery, wires, switch(not compulsory) and a bulb/ soundbox/ fan.
2. When there is at least 1 hole in the circuit, it is called an open circuit. In an open circuit the electricity cannot flow, so the bulb cannot light up.
3.  In a closed circuit the electrcity can flow, so the bulb can light up.
4. When the switch is open, it is an open circuit. When the switch is closed it is a closed circuit. The switch controls the current flow.
5. The light bulb is made out of different parts and they are...
- The bulb (glass)
- The filament (tungsten)
- The tip (metal)
- The metal casing (metal)
- ( the gas in the light bulb is argon)
6. The wires are pathways for the electricity to flow.
7. The size of the battery does not determine how strong it is.
8. Wires have an  rubber casing that prevents electric shocks, because rubber is a non-conductor of electricity.
9. The filament of the bulb is made of tungsten(poor conductor of electricity) so that the filament will not melt.
10. When there are more bulbs in the circuit, the bulbs will be dimmer

# data[].attributes.body
• The electrical system is made up of:
1. Wires
- The wires are made out of copper
- They have an outer casing made of rubber which is a non-conductor of electricity to prevent electrical shocks
- Wires allow electricity to flow through them to get from the battery to the bulb
2. Batteries
- Each battery has a negative and positive terminal.
- Electricity flows from the negative point to the positive point
- Batteries are energy sources for the electrical circuit that is portable
- Can be arranged in series or parallel arrangement
3. Bulb
- The bulb converts electricity into heat and light
- It must be connected to a battery and a wire with both of them touching the metal casing and the metal tip of the bulb.
- It must be in a closed circuit to light up
- The parts of a bulb are the glass bulb, inert gas, tungsten filament, contact wire, support wire, base contact wire, metal casing, insulation, and metal tip
- Can be arranged in parallel or series arrangement.
4. Switch
- The switch controls the flow of current
- When the switch is open, it is called an open switch, and when it's closed it's called a closed switch.

• When there is a gap in the circuit, it is called an open circuit but when there are no gaps and everything is properly fixed, it's called a closed circuit.

• Factors affecting the brightness of bulbs:
- Number of bulbs
- Arrangement of bulbs
- Number of batteries

# data[].attributes.body
the more bulbs connected in parallel, the brightness of each bulb remains the same

# data[].attributes.body
-Bulb has filament, metal casing, metal tip
-Battery is an energy source
-Wires help to make an electricity pathway
-Switch controls the flow of current
-Arrangement of bulbs can be series or parallel arrangement
-Benefits of having a parallel circuit is..
When one bulb fuses, the other bulb will still continue to light up
Bulbs are brighter
-Disadvantages of having a parallel circuit is..
Needs more power
-Benefits of having a series circuit is..
Needs less power
-Disadvantages of having a series circuit is..
When one bulb fuses, the other bulb would fuse too
Bulbs are dimmer
Objects that allow electricity to pass through are called conductors of electricity while objects that does not allow electricity to pass through are called insulators or non-conductors of electricity
When a bulb in a circuit lights up, it means that the circuit is a closed circuit, however, if a bulb in a circuit does not light up, it means that the circuit is a open circuit.

# data[].attributes.body
-Bulb has filament, metal casing, metal tip
-Battery is an energy source
-Wires help to make an electricity pathway
-Switch controls the flow of current
-Arrangement of bulbs can be series or parallel arrangement
-Benefits of having a parallel circuit is..
When one bulb fuses, the other bulb will still continue to light up
Bulbs are brighter
-Disadvantages of having a parallel circuit is..
Needs more power
-Benefits of having a series circuit is..
Needs less power
-Disadvantages of having a series circuit is..
When one bulb fuses, the other bulb would fuse too
Bulbs are dimmer
Objects that allow electricity to pass through are called conductors of electricity while objects that does not allow electricity to pass through are called insulators or non-conductors of electricity
When a bulb in a circuit lights up, it means that the circuit is a closed circuit, however, if a bulb in a circuit does not light up, it means that the circuit is a open circuit.

# data[].attributes.body
The components of a light bulb:
glass bulb
argon and nitrogen
filament
support stand
base.

# data[].attributes.body
- There is a positive and negative terminal on a battery.
- The switch controls the flow of the electricity
- The amount of batteries connected to the wire affects the brightness of it
- There are 2 arrangements of bulbs parallel or series
- The bulbs' 3 major parts are the filament, metal casing, metal tip, glass bulb, and the gases inside of it.

# data[].attributes.body
- The bulb consist of the filament, metal casing and metal tip.
- Wires are the electrical pathway
conductors are objects that allow electricity to pass through
- insulators are objects that dont allow electricity to pass through
- when it is an open circuit, the blub should not light up
- when it is a closed circuit, the bulb should light up
- to test if the bulb is working, you need to make a circuit tester
- the size of the battery doesnt affect the voltage of it
- the electrical flow flows from the positive side of the battery to the negative side of the battery
- battery is a source of energy

# data[].attributes.body
I can recall that a electrical circuit is made up of a wire bulb battery and a switch . The purpose of putting a battery in is that it is the source of electricity ,and once the circuit is connected ,electricity flows from the positive side of battery through the wire as a pathway .Then ,it will flow through a closed circuit and then reach the bulb to light it up .the bulb will only light up when the wire is touching the metal tip and metal casing of bulb .After that , the electric current will  flow back to the battery.
However, the materials  needs to be a condutor not an insulator to light up the bulb.The battery can come up with different sizes but same voltage .Batteries can also be arranged in parallels or series. In a series circuit, all components are connected together to form a single path for current flow. In a parallel circuit, all components are connected across each other with exactly two electrically common nodes with the same voltage across each component.

# data[].attributes.body
- There can be bulbs in series arrangement, or parallel arrangement.
- A light bulb is made out of the filament, a battery/ batteries, metal casing, metal tip, bulb and wires.
- The bulb is made out of glass, the filament is made out of tungsten, the metal casing and metal tip are made out of either aluminium or brass and the wires are mostly made out of copper.
- The wires are mostly covered by  rubber casing to prevent people from getting electric shocks.
- A switch controls whether it is a closed or open circuit.
- An open circuit is when a switch is turned off and electricity will not flow. A closed circuit is when the switch is turned on and electricity will flow.
- There are conductors and insulators/ non-conductors of electricity.
- In series arrangement, as the number of bulbs increase, the brightness of the bulbs decrease. But in parallel arrangement, as the number of bulbs increase, the brightness of the bulbs stay the same.
- Having bulbs arranged in parallel requires more power.
- Having bulbs arranged in series requires less power but the bulbs will be dimmer. And if one bulb fuses, all of the bulbs will not work.
- The best conductor of electricity is silver, followed by copper, then gold.
- Some examples of insulators of energy are rubber, wood, plastic, paper, etc.
- In order for a light bulb to light up, it needs a wire to touch the metal casing and the metal tip.
- The size of a battery does not affect the voltage of the battery.
- A battery has a positive terminal and a negative terminal both located at opposite ends of the battery.

# data[].attributes.body
Electricity is a system. It consists of an electric circuit. The electric circuit consists of the parts, bulb, switch, wire, and battery. The bulb is made out of glass because it is transparent, cheap, and has a high melting point. The bulb is specifically made of soda-lime glass as it is a hard glass that withstands high temperatures. The bulb consists of a filament, a metal casing, and a metal tip. There are two wires in the bulb, one connected to the metal casing and the other connected to the metal tip. The filament is made of tungsten as it has a high-melting point. Next, is the battery. The battery is an energy source. The battery has two sides, the positive end, and the negative end. It doesn't matter that the if the size of the battery is bigger, it has a higher voltage. Even smaller batteries have higher voltage as well. Next, the wires. The wires are very important as well as for electricity to flow through, wires are needed to connect all parts together to form a complete circuit. Wires are usually made of copper. Lastly, the switch. If the switch is open, the circuit is not complete which is called the 'open circuit ' but if the switch is closed, it is called the 'closed circuit ' in where the circuit is complete. Sometimes, the switch is not needed as well. There are also conductors and insulators of electricity. Conductors are good while insulators are bad in that they do not allow electricity to flow through. When the circuit is complete, make sure that the wires are connected to the metal casing and the metal tip of the bulb to light it up. There are also series and parallel arrangements.

# data[].attributes.body
An open circuit is a circuit that is not properly connected and /or  is one that is not properly arranged.The bulb will  not light up

A closed circuit is the opposite of an open one.(see above)

# data[].attributes.body
-The bulb has a filament which is made of tungsten
-there is a negative terminal and a positive terminal
-When the bulb is lit it produces light and heat.
-The wires are made of copper.
-The outer covering of the wire is usually made of rubber.

# data[].attributes.body
the batteries are a source of energy for the electrical system. the wire transports the electricity to the bulb. If the switch is open, it is called an open circuit and electricity cannot flow, meaning the bulb wont light up. if the switch is closed, the electricity can flow and the bulb will light up.

# data[].attributes.body
the electrical system includes the battery, wire, bulb and switch. the bulb and also be replaces by any electrical appliances. when it is a closed circuit, electric can flow through, when it is an open circuit, electric cannot flow through. when there are more batteries, the bulb will be brighter and the bigger the battery does not mean it has more power.

# data[].attributes.body
1. The electrical system consist of a battery, bulb, switch and wires.
2. The outer cover of a wire is made of rubber.
3. The wire is made of copper.
4. The filament of the bulb is made of tungsten.
5. A battery has a positive and negative terminal.
6. The wires have to be connected to the metal tip of the bulb and the metal casing.
7. Metals such as copper, aluminium and silver are conductors of electricity.
8. Materials such as rubber, plastic and wood are non-conductors also known as insulators of electricity.
9. Conductors of electricity allow electricity to pass through.
10. Insulators of electricity do not allow electricity to pass through.
11. An open circuit does not allow electricity to pass through.
12. A close circuit allows electricity to pass through.
13. The size of the battery does not affect how strong it is.
14. Even if a battery is smaller, it depends on how high the voltage is to compare which battery is stronger.
15. Batteries come in different shapes such as cylinders or cuboids.
16. Batteries come in different sizes, some are bigger and some are smaller such as AA and AAA.
17. As long as there is a gap, the light bulb would not light up and electricity cannot flow through.
18. Wires are pathways for electricity to flow through to light up the bulb.
19. Batteries can be arranged in series and in parallel.
20. Before doing an experiment on electricity, we should test out the circuit to make sure it works.
21. When bulbs are arranged in series, they are brighter.
22. When bulbs are arranged in parallel, they are not as bright.

# data[].attributes.body
The electrical system works to gather to perform a specific function. The electrical system consist of a bulb, wire, battery and switch(not necessary)
Bulb- Has a metal filament, metal casing, metal tip and a glass. The wire must touch the metal casing and the metal tip to light up.
(*When the bulb lights up it does not only provide light but also heat.)
Battery-is the energy source, has a positive terminal and a negative terminal.
Wire-made of copper, covered in rubber to prevent from getting shocked. Wire is made of copper to as it is a good conductor of electricity. Rubber is used as a outer covering because it is a good insulator of electricity.
Switch-controls the flow of a current.
There is a open circuit and a closed circuit.
In an open circuit the current cannot flow. In a closed circuit current can flow.
We can arrange circuits in two arrangement. It is the parallel arrangement and the series arrangement. In the parallel arrangement each bulb gets the exact same battery voltage and the amount of brightness remains the same for each. However, in the series arrangement each bulb shares the battery voltage equally. If there is two bulbs and the battery voltage is 10 each bulb gets 5 voltage. Similarly, they share the brightness equally. And when 1 bulb fuses up the rest cannot work in the series arrangement. These are the factors affecting the bulbs. In our HDBs' the bulbs used is rather arranged in parallel arrangement than series arrangement as it would be easier and sufficient for us.

# data[].attributes.body
1) Bulbs in a parallel circuit is brighter than a series circuit.
2) A circuit contains a battery, bulb, switch and wires