Where does electrical energy come from?

The electrical energy we use is generated by power stations. Most power stations in Australia burn fossil fuels, usually coal, to generate energy. Coal is burnt to release heat energy that heats water. The water turns into steam. The steam rushes past turbines (devices with blades), which then spin. The turbines are connected to generators. As the turbines spin, wires or magnets in the generators spin transforming movement energy into electrical energy.

Activity 1. Draw your own images of this process

How does electrical energy get to our homes?

Power stations that produce electricity are usually a long way from places that use it.
To get to those places, the electrical energy goes through a lot of steps before it reaches our homes and factories:
• After being produced in the power station, lots of electrical energy is transferred
along high voltage transmission lines to local substations.
• These substations use power poles to distribute electrical energy to places around them.
• The electrical energy goes through a transformer drum before reaching your house so that it is the right voltage for your appliances to use safely.

Activity 2. Draw your own images of this process

Which bag will do the job best?

You and four friends have a dilemma: you need to carry five items in five different bags.
Which object would be best placed in which bag?
Identify which bag would be best suited to carry the 5 listed objects below and explain your choice.

1. A plastic binder 

2. Some muddy shells

3. A watermelon

4. A wet towel

5. Some frozen ice poles

*Create a table like the one below and complete.

Bag Made of;                  Object to carry                    Explain

Many kids grow up to look like their Mum or their Dad. Do you look like either of your parents?

If you take a close look you may find you share some similar features to your parents.

1.Make a table like the one below

2. List things which are similar between you and your mum, and you and your dad!

HOW AM I THE SAME

        MUM                         DAD

Been in the fridge this morning? Cooked your toast?

How many times have you already used Electricity today??

• Create a Daily Electricity Diary today by writing down each appliance you use throughout the day which uses Electricity.

**Choose 3 of these activities you have used electricity for and write down how you could have performed the same task WITHOUT using electricity.

***email your completed work back to Mr.A at davea@woodfordps.vic.edu.au

Choose 3 of the scenarios below and draw your characters appropriately dressed for each activity. List the materials your chosen clothing is made from. Plastic Gloves? Rubber Boots? Leather jacket?

*Going into dark, damp caves *Going walking in the snow *Exploring underwater/scuba diving *Going into space *Going into the desert *Going for a walk in the wet, tangled jungle *Going for a walk in the scrub *Going for a hike up a mountain *Going shopping *Weeding the garden *Weeding the prickly garden *Running in a competition *Going surfing *Building a snowman *Going to the markets *Mountain bike riding *Washing a car *Going out in windy weather *Going dancing *Going to school *Playing soccer *Working in a rubbish tip *Doing the washing up *Bee keeping *Boxing *Travelling on a plane *Going to bed in winter *Going to bed in summer *Making mud Pies

email your completed work back to Mr.A at davea@woodfordps.vic.edu.au

Mr.A’s little newborn son Sam is now 4 months old, and is growing everyday. As are you.

Play the clip above and watch Lotte grow as she gets her portrait photo is taken throughout her life from when she is born until she turns 20 years old.

For your science lesson –  find 5 pictures of people from newspapers or magazines and stick them into your workbook in order from who you believe is the youngest person to the oldest. Underneath each picture write down how old you think each person is.

• Remember to take a look at your mealworm again today – how are they going? You will need to give them some fresh carrot again this week, and perhaps give them some fresh oats to live in too.

Take a look at the official Science Week site by clicking on the link below

Home

Can you see your mealworm growing or changing?

What details can we see when we have a close look at our mealworms?

Carefully take your mealworm and have a close look at its features.

Time to make your own mealworm creation!

Using play dough (or leaves, twigs gumnuts etc from the garden) make a model of your Mealworm?

Make it far bigger than its normal size and add as many small features as you can see on your mealworm. You may wish to use a toothpick or pencil to mark in some details.

Remember when you put them back in their oats – it is time to give them some fresh carrot.

*If you need a little help looking up close there’s a pic of our mealworm friend on our science blog page.

Take a picture of your finished mealworm model and email it to davea@woodfordps.vic.gov.au so Mr.A can have look.

In our previous Science session within our Year 5/6 unit the students created Water Wheels using the materials given to them in class with a partner.

Create you own water wheel at home using materials found at home.

You do not need to use mum’s spoons as a propeller – what else can you use?? Leaves? Cardboard?

Post a picture of your completed working water wheel to Mr.A at davea@woodfordps.vic.edu.au – or draw your completed design in your workbooks including labeling and materials.

Test it using running water or a hair dryer!!

*IF you are unable to complete the task simply draw a picture of a water wheel you would design and list the materials you would use if you were to complete this task at home.

This week in Science Yr 3 & 4’s are learning about the topic of Tensile Strength within their term unit ‘Materials’.

Tensile strength measures the force required to pull or stretch a material to the point where it breaks. The term ‘tensile’ refers to something being under tension or having a stretching force applied.

Materials with high tensile strength do not snap, tear or stretch. Materials that stretch but do not snap have medium tensile strength. Materials with low tensile strength snap or tear easily.

Make a table in your workbooks including 3 headings- Low Tensile, Medium Tensile and High Tensile and list 5 MORE things around your home which fit into each category.

Post your completed work back to Mr.A at davea@woodfordps.vic.edu.au