Category Archives: materials and change

Science Week 2020 ~ Senior AS Class

For Science Week 2020, we made Porridge Playdough.

We used 2 cups of porridge, 1 cup of flour and 1 cup of water.

First, we mixed the porridge and flour. These are dry.

Next, we added the water. This made it wet.

Then, we mixed it with a spoon because it was sticky.

Lastly, we kneaded it with our hands until doughy and stretchy.

We used Goldilocks and the Three Bears mats to play with our Porridge Playdough.

We made bowls, windows, a blanket and a spoon.

I’m sure Baby Bear would love to make his own Porridge Playdough!

Which Butter/Margarine Will Go Off First? by 5th Class Room 6

 


We investigated which butter or margarine would go off first.
Materials
Zip lock bags
Spoon
Butter/Margarine
(Pure homemade butter, Dairy gold butter, Dairy gold Original
Flora, Low Low, Benecol, Heavenly Buttery, Stork margarine)

Our Hypothesis
Pure butter will go off first because it has no preservatives.
Dairy gold original will go off second.
All other products should go off around the same time.

Method (Fair Test)
1. All butter/margarine products were purchased together in the same shop .
2 We used the same spoon.
3 One person conducted the experiment.
Using a spoon he/she took out butter and placed it into a zip-lock bag.
4 The same quantity of each product was placed in the zip-lock bag.

Findings
After 2 weeks pure butter went off – Black mold is growing on the pure butter.
After 4 months – February 20th 2018 none of the margarine’s have gone off.
Our Hypothesis is correct so far. Well done!

Things are Heating Up in Room 4!

In Room 4, we have been very busy looking at how heat can change things.

We have discovered that when you make a solid hot, it usually turns into a liquid. We observed ice melting into water and we saw how jelly cubes melt into a liquid when you add hot water.

Because there are so many class birthdays in November in our class, we wondered if there was a way for us to melt our jelly cubes quickly. We decided to melt 6 big cubes of jelly and then melt 28 tiny jelly. We monitored our water temperature using a thermometer and we made sure that we used the same amount of water in each bowl. We all made our predictions, then our race began!

Can you guess which cubes melted faster?

Dissolving sugarcubes in Room 12

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Last week in Rang a Trí we conducted a science experiment to investigate  how long it takes for a sugar cube to dissolve in different temperatures of water. We brainstormed in groups about what we would need and what we would have to do. When all the groups came together with their ideas we combined them and made a plan. We gathered everything that we needed: thermometers, sugar cubes, plastic spoons, see-through plastic cups and hot and cold water. For a timer we used an online stopwatch on the whiteboard. We worked in six different groups. First of all we put 100ml of hot water into our plastic cups. We put our thermometers into the hot water and recorded the temperature of the water. Then we dropped our sugar cubes into the hot water and stirred them, and we began the stopwatch just as we dropped the sugar cubes in. We observed and recorded the time that it took for the sugar cubes to dissolve using the online stopwatch. After that, we reduced the temperature of the water by replacing 50ml of the water with cold water and mixing the two to make lukewarm water. We repeated the procedure and recorded our results. Finally, we used 100ml of cold water and repeated our procedure and recorded our results again. When the water was hottest it ranged from 47 to 40 degrees and it took from  47 seconds to 28 seconds for the sugar cubes to dissolve. The lukewarm water ranged from 38 to 23 degrees and it took from 1 minute 9 seconds to 28 seconds for the sugar cubes to dissolve. The cold water ranged from 18 to 17 degrees and it took from 1 minute 10 second to 40 seconds for the sugar cubes to dissolve. We concluded that the colder the water is, the longer it will take for a sugar cube to dissolve in it.

Volcano Experiment

We have been learning about the effects of heat.
A few weeks ago we made play-dough in our school kitchen.

Last week Tristan used play dough to make a model volcano.

Ms. McGinley has been teaching 4th Class all about volcanoes.

We learned about the different parts of a volcano.
The burning liquid inside the volcano is called “magma”. When it flows out of the volcano it is called “lava”.

photo 4

We learned about the volcano in Yellowstone National park in North America.
Other places that have lots of volcanoes are Hawaii and Iceland.

We learned about the eruption of Mount Vesuvius in 79 AD which destroyed the city of Pompeii in Italy.

We conducted experiments with Ms. McGinley to see how a volcano erupts.

We needed the following equipment:

  • a bottle with the top cut off
  • play dough to make the shape of the volcano
  • baking soda
  • vinegar
  • red food colouring

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Tristan and Sean filmed the experiment last week.

Step 1: Sean poured a small amount of vinegar and red food coloring into the bottle.

Step 2: Tristan poured a spoonful of baking soda into the bottle.

Watch what happens when the vinegar and baking soda combine in our video.

The chemicals in the vinegar react to the baking soda. The mixture fizzes up and pours out over the sides of the volcano, just like when lava pours out of a real volcano during an eruption.

We really enjoyed this experiment even though it was very messy!

Tie Dying In Fourth Class

We made tie dye t-shirts  in our class.

1:  We started by damping the t-shirts and squeezing out all the excess water.

2: Then we pinched the t-shirt in the middle and twisted it so it became small and heavy.

3: We used three elastic bands to make six parts.

4: Then we got the tie die ready by mixing the powder with water and some salt, we had three colours yellow, green and red.

5: We had two parts for each colour and we squirted them on.

6. We allowed the t-shirt to dry and then put it into the washing machine on its own. We allowed the t-shirt to dry again and it was ready to wear.

We loved making the t-shirts because we were able to wear them for our Christmas concert and they were part of Green schools because we were reusing the t-shirts and it was great fun!

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Sixth Class Primary Science Fair

On  the  11  of  January  2014  we went  to  the  RDS  Primary Science Fair.It  was  an  honour  to  be  invited  to  exhibit  our  science  project  at  this prestigious  venue. Only three percent of the primary school in Ireland were selected to exhibit their projects at  the  RDS . At  the  end  of  the  day  the adjudicators  gave  us  a  plaque  and  a  certificate. The  adjudicators wrote  on the  certificate  that we were a well  mannered  and  knowledgeable class  and  that  our  presentation  and  layout were both excellent. They  were also  impressed  by  our  virtual  RDS  that  we  created  on  mission V. It  was  a  great  achievement  for  sixth  class  and  everyone  really  enjoyed  their  day  at  the  RDS   Primary  Science  Fair.

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ECO Workshop

Today, Wednesday 15th May, a lady called Natasha came into 1st Class and talked to us all about reducing our waste, reusing different things and recycling as much as we can.

She told us lots of interesting facts about where paper and plastic come from and how they are made. We were amazed to see all of the different bags, clothes and jewellery that had been made out of recycled materials like tents, tyres and sweet wrappers!

We talked a lot about reducing the amount of electricity that we use at home.

Tie Dye 2nd Class Room 11

Last week in room 11 we had great fun using the technique of tie dying to create wonderful designs on some cotton material.

We made up the dye solution using water, salt, and fabric die. When we had tied up our t-shirts and pieces of cotton with elastic bands, we soaked them in the dye for a couple of hours, stirring occasionally. After leaving them to soak, you must wash them in the washing machine and leave to dry.

Today we got to open them up to reveal all the unique designs and patterns that we created. We are thrilled with the results and are looking forward to wearing our new t-shirts and tops!