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We are learning about light in first class. Light comes from a light source like the sun, fire, torches and candles. If you block the light source you create a shadow. Light shines through some things. Those things are transparent. Light does not go through other things. Those things are opaque.

Today during our experiment we created shadows using torches and objects to block the light. We also saw how light reflects off a mirror.

Lava Lamps

First Class looked at chemical energy and how it’s produced. We discussed what a chemical reaction is. We thought about a chemical reaction we created at the beginning of the school year when we mixed water, yeast and sugar and added it to our bread mixture. We then investigated two different types of tablets and looked to see what reaction they had in water. The first tablet was an allergy tablet and it did not dissolve in water. The second tablet was a Rubex vitamin C tablet. When the Rubex tablet mixed with the water it began dissolving rapidly creating CO2 bubbles.

After that we investigated if water an oil mix. We discovered that they do not mix because water is heavier than oil.  We also investigated if our tablets would dissolve in oil. They didn’t. We added food colouring to the water and oil and found that the food colouring mixed with the water but not with the oil. We decided that the food colouring must be the same weight as the water but heavier than the oil.

We used this information to  create our own Lava Lamps. We poured water, oil and a little food colouring into jars. We then added the Rubex tablet. Check out our Lava Lamp below.

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Floating and Sinking; What is the best material for a life jacket?

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We had great fun this week in Senior Infants in room 2. We wanted to find a good material to use in life jackets so we started by investigating different materials to see if they would float or sink when … Continue reading

Chemical Energy and Capacity

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We had great fun creating lava lamps in 2nd class. Now we know that chemical energy is energy released during a chemical reaction. We found out that oil and water do not mix. Water is heavier than oil. For our … Continue reading

Shining Bright in Room 10

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

Room 10 Blog 002
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.