Robins were asked to think – pair – and share there ideas of how circuits work. Mr Crooks brought in a battery powered torch and asked the children to explain the parts inside and how it all works. Why does a torch emit light? Where is the power source? What other components are there?
Robins then investigated different circuits. They first predicted whether the circuit was complete or incomplete and then tested whether their prediction was true.
Here is some extra reading for you! (Don’t forget to write in your reading record that you have read it!)
The Science Behind the Science
Circuits need power sources such as batteries.Wires are connected to both the positive and negative ends of the battery (or cell). Circuits contain other electrical components such as bulbs and motors, which allow the electricity to pass through them. Electricity will only flow and travel around a circuit that is complete. They cannot have any gaps or else the electricity cannot pass through and there must be no short circuits.
The basic parts of a circuit include: the battery, the wire(s), the bulb(s), buzzer(s), motor(s) and switches (on and off). When the switch is open, there is a gap in the circuit. This means that the switch is off, and that electricity cannot pass around the circuit. When the switch is closed, the electricity can travel around the circuit and the light bulb is switched on. If you add more batteries to a circuit, this will increase the power source (electrical energy) and will make the bulb a lot brighter. The more bulbs you add to a simple circuit, the less the electrical energy, which will make the bulbs a lot dimmer.
If you have longer wires, the electrical energy has a lot longer to travel around the circuit. This will also make the bulb a lot dimmer. Motors rotate when electrical energy is flowing around the circuit.
Basic circuits have a cell, a lamp and a switch. To make the circuit work, these components are connected to the metal connecting wires. As discussed above, when the switch is closed, the lamp lights up. The current will flow all around the circuit. The cell pushes the current around the circuit and as it passes through the lamp, it makes it light up. The current is measured in amps (A), using an ammeter in series.
Isla personally requested if she could be allowed to read aloud her own work for the blog! Well, why not?! At break time, Isla had a go at reading out the letter she wrote. (Based on our class reader). Well done, you really worked on your intonation.
This term in PSHE we have been concentrating on my community and clubs. We are all proud of belonging to different faiths , communities and clubs. This week we are very happy to share that Elias was awarded Silver at the Midlands Taekwondo championship