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17/07/20

Everyone looks forward to the summer holidays, but after a couple of weeks most of us start to get bored. So, we’ve set you some challenges to keep your brain ticking over, and win loads of Harris Points! 🏆Have a go at them here➡️ https://t.co/zfuU9DbsRM https://t.co/PZhVjL8f7l

17/07/20

A truly big THANK YOU to all our students, parents and staff for your support over the past few months. Have a great summer and see you all again in Sept!🙂. Signing off with our special showcase video! https://t.co/PCIxDFFQLy

16/07/20

Retweetd From Miriam L-U

This is a really cool tree👍🙂, it is great to see the students valuing the positives experienced in this tough time and appreciate such things .

16/07/20

Messages from our HBAED Tree of Appreciation. "I am thankful for my friends and family who cheer me up when things go wrong." "I am thankful that everyone has been kind and supported me while learning at home." https://t.co/eEip4K9Ct3

16/07/20

Messages from our HBAED Tree of Appreciation. "I can spend more time with my dad. It's very fun. We have intelligent debates." "For having the confidence to talk about my feelings." "For my family since we are spending more time with them." https://t.co/EF6vs2JauD

16/07/20

This is our HBAED Tree of Appreciation. We asked students in Years 7-9 students to say what they were for as part of their lessons. We thought you'd like to see some of their messages. "I am grateful that my family has come closer together during lockdown." https://t.co/KjCzJNaG84

15/07/20

Retweetd From MPS Southwark

have kindly supplied Another 2 weeks worth of breakfasts thanks to funding from their charity. 234 Students families are coming in to collect breakfast bags with beans wheatabix bread fruit & milk Big thanks to & our Safer Schools Police Officers for packing https://t.co/aWt85Vp3iv

14/07/20

Parents/carers... you can now download "Raising Little Allies-To-Be: An Incomplete Guide" from our resources page. A beautiful resource to explore and with children. Download it at https://t.co/6uPWkddxmr https://t.co/F9UQPWpzDG

14/07/20

You can now download a resource pack on from our resources page. Includes a list of books, films, TV shows, articles, videos and podcasts to help get you educated. Download at https://t.co/6uPWkddxmr https://t.co/WGHtBp22ed

13/07/20

Ms George says: "I can read Margaret Atwood’s writing time and time again. One of the reasons I wanted to study Literature at A-Level is so I could explore The Handmaid’s Tale and I’m so glad I did! Her writing is absorbing and still (sadly) politically relevant https://t.co/lD4IR8V5sw

10/07/20

Welcome meeting for our new Year 7s. You can now watch a recording of the full session, including Q&A. https://t.co/9QeVeOeFKh

10/07/20

Summer's Not Cancelled is an online summer programme to help young people aged 16-25 in develop their and skills. Find out more and sign up at https://t.co/Ft80HLpkl2

10/07/20

Can you spare 16 hours over July and August? Will you donate them to a project in this area? Sign up for the "One Million Hours" programme and find out about volunteering opportunities near you this summer. https://t.co/5VLuLv9bTs https://t.co/vSlXc7DO72

09/07/20

FREE online mini-modules to help mums develop their tech skills over the summer. https://t.co/vzbuOw5TbG

08/07/20

Aged 15-19? You can apply for Words for Work, a virtual internship programme from . Complete a large scale creative project, take part in employability training, receive 1:1 mentoring, and creative masterclasses led by industry experts. https://t.co/g73m9m68Ku

08/07/20

Retweetd From HarrisDulwichGirls

Looking for summer activities? Find out more about this 'Summer of Food and Fun' programme for children and families in and . https://t.co/eP6j251HmX https://t.co/tZqQBM0voN

07/07/20

How will your son travel to school in Sept? In light of government advice, we want to encourage all students to make their way to school safely when we reopen. Please help us by completing this one-minute travel survey by Weds 15 July. Thank you. https://t.co/sCx9MwbYW2

06/07/20

This week's competition - What have you enjoyed during lockdown? Send us a review of one film or a selection of different ones that have helped you through lockdown - and if they are linked to a book that you have read, even better! Details https://t.co/N0XcjkrUsB https://t.co/i4yK1DSXye

06/07/20

Retweetd From HarrisDulwichGirls

Southwark Libraries have some great events, videos and fun activities for young people as part of their . Big thanks to our for everything they are doing for young people in . https://t.co/54j1OkjYPX

03/07/20

Retweetd From Manor Estate TRA

Massive to & for arranging a today ❤️ These bags were used as a top up for our neighbours in need, already receiving freshly prepared meals. We are so pleased to pass on the parcels from to https://t.co/DdUaILMyXz

Harris Academies
All Academies in our Federation aim to transform the lives of the students they serve by bringing about rapid improvement in examination results, personal development and aspiration.

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Your Weekly Challenges

Every week we're setting our boys some special challenges, and inviting you to let us know how you get on.

Record your entries and send them to Mr Allison j.allison@harrisdulwichboys.org.uk. All entries will get 10 Harris Points and and count towards a prize draw for £5 and £10 Amazon Vouchers.


Separation - chromatography and electrolysis

This week is all about methods of separation. BORING, did I hear you say?! Well, did you know that the methods of separation that you learn about in lesson are actually really important in science labs around the world. The two that we are looking at this week are chromatography and electrolysis.

Challenge 1 - exploring electrolyisis

Challenge 2 - exploring chromatography

Chromatography is used to split up substances, revealing the different components inside. If one of your sample spots split up into three spots as it travelled up the paper, that particular sample must contain three substances. If the spots haven’t clearly separated, we can change the solvent and this will change the degree of separation of the spots.  

By measuring how far up the spots have travelled, we can calculate something called Rf value. Each different substance will have its own unique Rf value. So, if we know the Rf value, we can look up what that substance is, which helps scientists in labs identify different substances. High-performance liquid chromatography (HPLC) is a technique that scientists in labs often use to separate, identify, and quantify each component in a mixture. This can be used for many different things including how to check what is in a medicine, to test pollution in water or to analyse blood samples.

Electrolysis is the process by which ionic substances are decomposed (broken down) into simpler substances when an electric current is passed through them.  Electrolysis is a technique we use to separate substances. For it to work, whatever electrolyte you are using, needs to conduct electricity as the inside of the pencil does. You may have tried water on its own and seen that it doesn’t work. By adding an ionic substance like bicarbonate of soda or lemon juice, the solution can conduct, and electrolysis can take place. 

The circuit you make by adding the battery causes the water molecules to break apart. Some of the hydrogen from the water is released at one of the pencil tips as bubbles, and oxygen bubbles are released at the other pencil tip. If you look closely, you’ll see a different number of bubbles being formed at each pencil because we are making different gases. This splitting up of a molecule by electricity can only happen if there are free moving ions in the solution. In industry, this same method is used to make sodium hydroxide. Sodium hydroxide is essential in making medicines, so this experiment gets us close to replicating a real lab process. 

Increasing the current will speed up electrolysis - that’s why when you push the pencils harder against the battery you get more bubbles, as you create a better connection for current to flow. Touch the two pencil ends together and you create a short circuit, hence why you see no more bubbles. Flipping the battery will swap where the hydrogen and oxygen bubbles are formed.  


MilkMake plastic from milk - and other experiments

This week we have three new exciting practicals. Our first one is making plastic milk! Milk doesn't really like to be mixed with acid so it begins to split. Could this be the way for the future in order to live in a plastic-free world?

Secondly, we have another crystalisation practical. Natural geodes in rock are form in much the same way as mineralised water seeps into air pockets in rock. You can make something similar at home with different types of salts. Why not see which type of salt makes the best crystals?

Finally, adding on from our rocket launches last week we can now try different engineering styles to see the different designs that can be used to make gliders or airplanes.

Challenge 1 - Make plastic milk

Challenge 2 - Make eggshell geode crystals

Challenge 2 - Make a hoop glider


Exploding lunch bag - and other rockets

RocketThere is nothing like a little rocket science to add some excitement to your day and who knew there was so  many different ways to make a rocket!

In some of these practicals you are going to be using your chemistry knowledge of acids and alkalis to make an explosive chemical reaction. You will see the reactions that take place when you add baking soda (alkali) and vinegar (acid) together. They create a lot of bubbling and foaming and most importantly gas! This gas builds up in the containers until they can't hold it anymore and - WHOOOOSH! - the content of the container explodes and BLAST OFF!

You can also use simple physics to get your rocket to launch. Don't forget, take some pictures and videos of your rocket and send them into school and you might get to be on the school website. Best of luck!

Challenge 1 - Film canister rocket

Challenge 2 - Balloon rocket

Challenge 3 - Acid/base rocket

Challenge 4 - Exploding lunch bag


Learn to predict the weather

Weather forecast 1552578106iplThis week's challenges are all about weather. Have you ever wondered how meteorologists predict what weather we are going to have? Well now is your chance to try and predict the weather yourself at home. Why not build some equipment and see if your predictions are as accurate as the weather forecasters on the news!

Challenge 1 – Making a barometer

Challenge 2 – Making an anemometer

Challenge 3 - Make a rain gauge

Challenge 4 - Making a thermometer


Make your own invisible ink

Have you ever wanted to write a secret message to someone but your nosey little brother or sister finds it before you can send it? Well invisible ink isn't just something you see in spy movies. Did you know that prisoners of war used their own sweat and saliva (yuck!) as invisible ink to send secret codes to each other. Why not try it yourself with these two simple methods and see which one you want to use the next time you want to send a top secret message! 

Download full details.


Blow up balloons - without any breath

This second practical is a really simple idea but you can have great fun, seeing who can blowing up a balloon until it pops without having to get out of breath! Using the information in the instructions you can see which gas is being produced using really simple science knowledge. Why not try using the same ingredients to see who can make a bottle rocket fly the furthest or fastest! Remember if you do take any photos or videos of these practicals to send them to school and you might get them included on the school website! 

Download full details.


EarSound 1 - Make an ear drum model

This week, we have three challenges about sound to link with the Year 7 lessons.

We all know now that sound is caused by vibrations. Vibrations travel in the form of sound waves. The outer ear (pinna) collects the sound waves and the waves travel up our ear canal until it reaches the ear drum. 

This model is going to show us how our ear drum works when the sound waves hit it.

Download full details.


ChickenSound 2 - Chicken sound box

This is an example of how a sounding board works. The vibrations from the string would be almost silent without the cup, but when you add the cup, it spreads the vibrations and amplifies them (makes them louder).

Pianos and music boxes use wood to act as a sounding board to make the instrument louder. 

Download full details.


DuckSound 3 - Duck sound straw

This is science? It sure is. You see all sounds come from vibrations. That little triangle that you cut in the straw forced the two pieces of the point to VIBRATE very fast against each other when you blew through the straw.

Those vibrations from your breath going through the straw created that strange duck-like sound that you heard. Now you will never be bored again when you go to a fast food restaurant! Have fun!

Download full details.


Science - Balancing forks trick

Can you do a centre of gravity balancing trick with two forks, an end of a potato, matchstick and tall glass? Download full details, and watch the video below if you need extra help.

Well done to Jackson Craze in Year 7 for successfully completing one of last week's departmental challenges (see his picture below).

Forks


Science - Magic bendy bones

Bones are very strong in comparison to their weight. Some bones can withstand thousands of pounds of stress. But why not have a go at making bendy bones, using a chicken bone, jar and white vinegar. Download full details, and watch the video below if you need extra help.


Food Tech - Ms Coulibaly's strawberry custard tart challenge

Can you make a strawberrry custard tart and send us a picture. This is one that Ms Coulibably made this weekend. Find the recipe here, including a 'how to' video, and get making a classic British dessert!

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Food tech - Miss Akhtar’s Ramadan Snacks

As it is the month of Ramadan, this is recipe for a tasty samosa you can make in bulk and freeze for the 30 days of fasting. We know a large portion of our boys will be fasting at the moment. This recipe is for lamb samosa but you adapt it to make a samosa with any kind of filling, depending on what you like.

Visit the This Muslim Girls Bakes website for the full recipe.

Samosa 1


Science - Make your own slime

Did you know you can create your own slime from cornflower and water to create a non-Newtonian fluid - a fluid in which the viscosity is dependent on the force applied.

Download a sheet with full details. Here's a video you can watch too, if you need extra help.

Don't forget to let us know how you get on to stand a chance of winning a £10 voucher.


Science - Create a cabbage indicator

How to make a pH scale indicator from a red cabbage - and how show acids and alkalis will change the indicator different colours.

Download a sheet with full details. Here's a video you can watch too, if you need extra help.


PE - Mr May's backward throw and catch challenge

Watch the video then try to do Mr May's challenge yourself. It's a test of your flexibility and coordination!

Don't forget to let us know how you get on to stand a chance of winning a £10 voucher.


Science - six challenges to choose from

This week we've six great science activities you can do at home. Just choose your challenge and send Mr Allison a picture or record of what you have made.

  • Make a DIY lava lamp
  • Create coloured plants
  • Make a static electricity butterfly
  • Make edible rock candy
  • Create a catapault
  • Build a model of the lungs

Download full details and instructions.

Plants


Previous challenges...

Can you do a Maradona 7, like Mr Connolly?


The 'Bring Sally Up' Press Up Challege. Can you beat Mr Miller? You'll need to keep going beyong 2 mins 18 secs to beat him. Have a look, have a go, and let us know how you get on! Here's a link to the music you'll need and a timer too - Bring Sally Up timer and music