It is such a shame that in this session we can’t run the purely practical sessions as we usually do, giving you a free hand to design your own experiments from scratch, but here is an introductory video with a practical you can do at home.
Don’t cheat! Try the experiment for yourself before you watch the end, and do make your predictions before you even start.
Remember in Science it is perfectly OK to be wrong, Scientist never look down on people if they are wrong, as it brings about its own answers. What Science is about it having an idea and testing it. So remember that in life! Learn from what we get wrong, but don’t punish yourself about it.
Introduction to the Heat Topic
This video introduces the Heat Topic using the Snowman investigation.
The Snowmen- This video just looks at the experiment
Lesson 2- Heat Transfer and Conduction
The video below is a bit advanced, but see how you get on!
It looks like some of you are going to be doing the electricity unit online. This is tricky but we’ll try to do as much practical as possible.
Please read the RISK ASSESSMENT IF WORKING FROM HOME
Risk Assessments S1 Electricity.xlsx
Rechargeable Cells or PP3s
Do not use rechargeable cells, lithium batteries or PP3s (the flat ones) for your own electrical kits as they have low internal resistance and could cause a high current.
Use only 1.5 V cells and zinc chloride are safer than alkaline.
Dispose of these as instructed on the packet once they no longer work. (they should be fine for the whole block)
Don’t use cells that have leaked- they must not be emitting a liquid or a powdery substance.
Only use a maximum of 2 x 1.5 V cells at a time.
Kitchen foil boxes usually have a sharp edge to cut the foil. Ask a grown up to tear you some off if there is a chance you can cut your finger
Beware of sharp edges on scissors
Parcel tape or sellotape
This can be very sticky and pose a risk to pets or young children, ask a grown up to help tape off the home made wires or complete the task well away from young children and pets.
Electrical kit use
Do NOT use your electrical kit near electrical sockets or electrical items.
Do NOT use near water and other liquids.
Do NOT do your static experiements near electrical sockets or electrical items.
Balloons can cause a shock to children and pets if they burst so don’t over blow them or use sharp finger nails. Warn young children and keep away from pets.
If you take apart a torch do not lose any small parts that can be a choking hazard. Do not use LED torches. Make sure the cells in the torch haven’t leaked. You will know if they have as there will be a white powder or liquid.
These are the Video Links to the S1 Electricity Ohm Comforts Videos
The current in series and parallel is a word version of the instructions for the videos above on setting up the Phet to check the rules for current and voltage in a series circuit. It would also be a great introduction to resistance
The first sheet is the brief version, the second one has more detail in it.
Don’t forget you can get more information and detail from the National 5 section of this website. GO to the PHYSICS NOTES link in the header and click on the DYNAMICS section. You can also answer some of the Compendium Questions and check the answers in the LO Answer section.
Below are the same files as above but as word versions
October 20th 2019 and after a week of worry I decided it was finally time to investigate the wormeries and see if the kilogram of worms were still with us. I am finding the stress and responsibility of these hard to take.
My plan, empty each wormery on an old piece of vinyl, investigate what is there and remake each one as they’ll be alone for a week. This was made more difficult as a very cute and friendly robin has been following me around the garden for the last fortnight and passes behind you after you’ve moved any piece of garden soil.
It was really heartwarming to see oodles of big fat juicy worms fall onto the vinyl. They weren’t moving much but were certainly a good size and huddled together in some big piles. The bottom of the blue wormery was quite wet, this was the one with no drainage. The paper had gone slimy and the potato skins were still undigested. Katrina, your McDonald’s straw is still there, but I think the bacteria might be thinking about working on it. So a new cardboard base, screwed up paper, the worms and then some partially digested compost. Lid back on and ready for off. The robin was flapping around so I posted a guard at the door.
Even the pink wormery had worms but the bottom was slimy with sand and paper- whoops I forgot to take a photo of this. So I’ve made up the box, with fresh cardboard and moved some of the worms from the blue box to the pink one and added more partially digested leaf mould / compost. Lid back on.
I was in two minds as to whether I ought to hold out one for the robin as a treat, but then Miss Crozier came to mind and I couldn’t bear to sacrifice one of the little cuties. Everything back in order, I stepped inside to get cleaned up and then remembered I ought to take a photo of the robin. It was then I noticed the escapees. I’ve no idea where they came from but at least 10 were making their way to freedom down the cracks in the paving and across the slabs. I couldn’t pull one up (see photos). If the robin gets you it isn’t my fault as I did give you a little tug to put you back.
So to the Sophie and Hollie- I’ve not killed them and they ought to be ready for you to get them through the winter next week!
Sorry the photos are in the wrong order with the escapees first.
Well, Wednesday 4th September one group in the Climate Catastrophe Group built their wormery. We are going to look into recycling of food and break down of fruit and vegetables. Worms do create greenhouse gases, but play an important part in maintaining the soil, which has taken a hammering over the last 60 years.
Unfortunately the worms arrived late on Thursday 5th September and had to be in the wormery before the weekend. The students hadn’t quite finished the wormery, so many came up during their lunch break and helped get the worms a temporary start. Our biggest concern is the amount of moisture that we need. The wormery isn’t a draining one, so getting the air and moisture levels is important. We also had to put all the worms in the one box as the second box wasn’t ready.
Let’s hope the worms make it through the weekend. The suspense is terrible and the temperature this weekend was pretty warm, the first dry weekend in four weeks- drat.
Thanks to Adam P for holding the camera as I did this demo. It shows so much Science in one large boiling tube! Convection, lack of conduction, state of matter, floating and sinking, density! Hope you like it.
The gauze is there only because the ice floats on the water and the ice needs to be at the bottom for the experiment to work.
Below are the resources for the HEAT topic that you’ll cover in S1 Physics. You might not be given all of the information by your teacher, but you can always use the additional materials to read around the subject, that’s what makes a successful learner, confident individual and responsible citizen.
Notes for the Heat Theory
Click on the red link below to open the theory notes in pdf format.