STEM Activities in Room 10!

We completed two light experiments last week to show the splitting and mixing of light/colour.

Experiment 1: We made rainbow spinners to show that when the rainbow colours are spun quickly, your eyes can’t keep up and the spinner appears white.

Experiment 2: We explored white light and colour by placing skittles and the outer circle of a plate. We added water and observed what happened. The colours moved towards the middle and created a whirl of colour.


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Shining Bright in Room 10

In Room 10 we have been learning about energy and forces. We have been investigating light.

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First we brainstormed things that give us light. We call these light sources. We learned that the sun is the biggest light source in our galaxy.

Room 10 Blog L & R 272Light sources: fairy lights, a torch, light bulbs, candles, safety lighters.

Then we learned about things which reflect light. We call these reflectors.

Room 10 Blog L & R 275Reflectors: tinfoil, mirrors, high visibility clothing, medals, coins, DVDs.

We learned that reflectors don’t light up themselves – light sources shine onto reflectors and the light bounces off them, making them look shiny.

We learned that the moon is a reflector. It doesn’t really shine – it reflects the light coming from the sun.

We brought in objects from home and tested them to see if they reflect light. Some of the objects were reflective, but some were not.

Room 10 Blog L & R 286The jewellery box was reflective.

Room 10 Blog L & R 291The envelope was not reflective.

We also learned about things that are transparent. If something is transparent it means you can see through it.

We brought in things from home which are transparent.

Room 10 Blog L & R 283Transparent objects: ziplock bags, make-up bags, plastic bottles, water.

We investigated the transparency of the following items: paper, tissue, tinfoil and  greaseproof paper. First we predicted which ones would be transparent and which would be non-transparent or opaque. Then we tried to trace a picture through each of these materials.

Room 10 Blog 001Here are our predictions and our results.

Here is a gallery of all of our investigations.

Dublin Science Festival

Click on the link below for information on ‘The Festival of Curiosity’ taking place in the RDS from 25th-29th of July. This unique event will provide an opportunity for parents, families and the public to interact with science as a cultural activity outside of the academic year.

Dublin Science Festival

Government Ministers visit St. Clare’s to promote Energy Saving in Schools

We were delighted to host the launch of the new ‘Energy in Education’ initiative in our school on Monday. We were privledged to have the Minister for Education and Skills, Ruairí Quinn and the Minister for Communications, Energy and Natural resources, Pat Rabitte, attending the event. We also had a special visitor from Sustainable Energy Authority of Ireland (SEAI), the Green Energy Guzzler. SEAI chose our school to make a promotional video about reducing energy use in schools, it was shown as part of the launch on the day and both Ministers were very impressed with all the energy saving measures we have in place. The video can be viewed on the website or by clicking on the following link

Planting Seeds

Here in 1st Class Room 9, we love experimenting and learning about different things in our environment. On Friday 27th April, we planted some cress and basil seeds that one of our classmates brought into school that day. The seeds had come with smoothie cartons and so were held inside small cardboard circles. This cardboard is biodegradable- that means that it will break down, or decompose.

Broad bean seeds: 

We decided to experiment with planting some broad bean seeds to see if they will grow in the same conditions as the cress and basil seeds. We planted these in clear plastic containers so that we can see any changes that happen. We monitored our broad bean seeds and this is what we found: on Friday 27th April we planted the seeds; on Wednesday 2nd May they had started to open; on Thursday 3rd of May the roots had started to come down and now on Friday 4th of May the roots are much longer!

Cress seeds:  We put the cardboard circles (containing the cress/basil seeds) into three separate plastic white cups in between some cotton wool buds. We made sure to keep the cotton wool wet. We checked for growth each day.

This is what we saw on Wednesday 2nd May!

On Friday 4th May, our seeds had started to grow their roots.

On Tuesday 8th May, our seeds had really grown a lot! We can see that the roots have grown all along the bottom of the cups and the shoot is starting to appear too.

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By Friday 11th of May, we could see the shoots and roots trying to push out.


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We took this picture on Monday 14th of May. We were sop excited to see how much more our seeds have grown and developed. The roots of both seeds are spread around the bottom of the cups and the shoots are big and strong.

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As you can see, the shoots of both of the seeds have burst through the surface completely now. They are very tall and strong. The roots are spreading out even further and are pushing through the cotton wool also.

Today is Monday, 21st of May. Our plants have grown a lot over the weekend, they have tall shoots and bright green leaves now. We think they look great!


6th Class–Rm 6 Squishy Circuits Experiment

On Thursday 22nd of March we experimented with “squishy circuits” in our classroom. A lot of people in our class made the play-dough for the squishy circuits at home. We used LED’s, battery packs, batteries, wires and play-dough to make our squishy circuits. We used voltmeters to measure the amount of energy that was allowed through the play-dough. We used two different types of LED’s during our project, small red ones and slightly larger yellow ones. You only needed to use two batteries to make the red one work but you needed four batteries to make the yellow ones work. Most of the dough  people made was insulating therefore not letting any electricity through. Only three of the homemade conducting doughs worked and all of the others seemed to be either insulating or just not working. There was a lot of different types of dough and lots of different textures. Some doughs turned watery and gloopy while others went hard and dry. One of the doughs even had mould growing on it!!!!!


In our pairs we were each given two LED’s, one red and one yellow, four batteries, one battery pack and a few lengths of wire. Each table was given two or three varieties of dough for their squishy circuits. Neither of the doughs that my table were given were conducting. We all shared the doughs around and eventually my partner and I found one that worked. We tried using two different types of dough in the one squishy circuit. It worked way better than any of the other times we tried. The previous highest voltage was 1.83 but when we measured the circuit with two different types of dough the voltage was 3.24!!!!!!! We had great fun making the squishy circuits and we can’t wait to make them again!!!!!!!!!!

1st Class Science Workshop

On Wednesday March 14th, a scientist came in to work with us. He made ice-cream with Room 10 and he helped us to make our very own indoor volcanoes! We had a great time and got very very messy!! These volcanoes are so easy to make, you can even make them at home! Try it!

We used a biscuit tin, water, flour, baking soda, vinegar, drinks bottle, washing up liquid and food colouring. First we mixed the flour and water together with our hands to make a thick paste, then we pressed and moulded this to the outside of the drinks bottle.

One person poured some washing up liquid into the volcano. Next, we added some food colouring, some groups used red, green AND yellow!! We took turns pouring baking soda and then a little vinegar into the top of the volcano too. What do you think happened next? That’s right, our volcanoes erupted!! The mixture inside the volcano came bubbling out of the top and spilling all over! The volcanoes were great fun to make, though very messy!

Room 9 and Room 10 went out to the yard to see some more science experiments; we watched excitedly as the scientist made lots of loud explosions , it was brilliant! We all think we’d like to become a scientist when we are older!

Check out our photos to see how amazing it was!

6th – Room 6 – Pencil Circuit– by Finn

I watch a show ever Tuesday called Scientific Tuesdays.We were learning about circuits so I went home and researched about them. I watched this on you-tube. I am hoping to complete this experiment in school.

Here is the link for you to watch:

Battery Experiment Results–6th Class Room 6

Our experiment has finally finished. Our results were very surprising. The results were that the cheap battery expired after 21hrs and 30mins. The expensive battery expired after 21hrs 51 mins. And the rechargeable battery expired after 26hrs 45mins.


In our class all children’s predictions showed that each person expected the expensive battery to last the longest. However our experiment proved us wrong. The majority of children in our class predicted that the that the rechargeable battery would last for the least amount of time. However our experiment proved us wrong again and showed us the cheap battery lasted the shortest time.


You can see our class predictions on a previous blog which you can go back and see.


6th Class – Room 6 – Battery Experiment, Update 2

We are very surprised in 6th class at the moment with how are experiment is turning out. At 12:30pm today the light powered by the cheap battery stopped working which means it lasted for 21 hours and 30 minutes. The light bulb powered by the expensive battery stopped working at 12:51pm today which means it lasted for 21 hours and 51 minutes. The light bulb powered by the rechargeable battery is still working at the moment.