Today’s Time Table
Morning
- Maths – End of unit assessment
- SPaG – Spelling: Adding the suffix -ion (1)
Afternoon
- Science: Electrical circuits
Maths
Yesterday, was our last session in our current maths unit: Decimals.
I have attached the end of unit assessment sheet, this is a test of your learning that has been taught in school. Please complete the sheet and mark your answers.
It would be great for you to let me know how you got on as well, I think you’ll all do really well!
[embeddoc url=”https://birdwellyear4.edublogs.org/files/2021/07/Spring-Block-4-Mini-Assessment-Year-4-Decimals-1.pdf” download=”all” text=”End of unit test” viewer=”google” ]
[embeddoc url=”https://birdwellyear4.edublogs.org/files/2021/07/Spring-Block-4-Year-4-Decimals-Answers.pdf” download=”all” text=”Answers” viewer=”google” ]
SPaG – adding the suffix -ion
We will go through the teaching slides for our first spelling rule session on adding the suffix -ion. I will go through the teaching slides at 9:30am.
[embeddoc url=”https://birdwellyear4.edublogs.org/files/2021/07/ion.pdf” download=”all” text=”-ion suffix teaching slides” viewer=”google” ]
Please find the worksheet for today’s SPaG session.
[embeddoc url=”https://birdwellyear4.edublogs.org/files/2021/07/ion-worksheet-2-1.docx” download=”all” text=”-ion worksheet” viewer=”google” ]
Topic – Science circuits
Circuits
Electricity can flow through the components in a complete electrical circuit.
A circuit always needs a power source, such as a battery, with wires connected to both the positive (+) and negative (-) ends. A battery is made from a collection of cells connected together.
A circuit can also contain other electrical components, such as bulbs, buzzers or motors, which allow electricity to pass through.
Electricity will only travel around a circuit that is complete. That means it has no gaps. You can use a switch in a circuit to create a gap in a circuit. This can be used to switch it on and off.
When a switch is open (off), there is a gap in the circuit. Electricity cannot travel around the circuit. When a switch is closed (on), it makes the circuit complete. Electricity can travel around the circuit.
Click me
to watch a silly video explaining this and then to play a game that checks if you can do it yourself
Click me
To see a video looking at how increasing the amount of power in a circuit will increase the brightness of the bulbs
Circuit Diagrams
We don’t draw circuit diagrams with colourful pictures of bulbs and buzzers because not everyone can draw well and so, it would start to get difficult working out what’s what. Instead, we draw circuit diagrams.
Circuit diagrams use symbols to represent the components in a circuit.
So, instead of drawing a circuit for a torch like this:
…we draw a circuit diagram like this:
DID YOU KNOW???
Short circuits
A short circuit happens when electric current can flow round a circuit from one terminal of the battery to the other without passing through any components. In a short circuit, the wire heats up and the battery will go flat.
Challenge 1:
CLICK ME
To play a circuit builder game. You add the components to the circuit to see what they can do. Can you design a circuit that would work in a useful electrical device? Like an automatic page-turner for your reading book or an automatic ice-cream stirrer for in the garden???
Challenge 2:
I want you to hunt around your house for devices that contain a circuit. Anything that takes batteries and produces noise, light, movement etc, using the power from them!
Can you draw a circuit diagram using the correct symbols for each device?
Are there any devices that have a component that we don’t know the symbol for? Maybe you could research what the correct symbol is or tell us about it on tomorrow’s meeting!
If you want to draw or photograph the device to go along with the circuit diagram, you can.
remember, electrical devices can be dangerous so always ask an adult’s permission before using one.
