Vinegar and Baking Soda Rocket

Children in 6th Class made a vinegar and baking soda rocket.

Chemical Reactions!

We looked at the chemical reaction between the acid vinegar and milk. This chemical reaction caused the protein molecules in the milk to clump together to form white lumps called curd and the liquid is called whey. When the whey is drained off, the curd can be pressed and dried. We moulded it into a solid bone-like structure. 

Balloons!

The flame heats whatever is placed in it. The rubber of the balloon without water becomes so hot, that it becomes too weak to resist the heat. When water is inside the balloon, the water absorbs most of the heat from the flame. As a result, the rubber does not become hot and does not weaken, so the balloon does not break.

We examined and discussed how water is a particularly good absorber of heat. It takes a lot of heat to change the temperature of water. 

Exploding bag experiment!

Our goal was to learn about acid based reactions. The children in Senior Infants mixed baking soda (a base) and vinegar (an acid), it results in a chemical reaction that produces carbon dioxide (CO2) along with water (H2O) and sodium acetate. If the bag is properly sealed, the carbondioxide is trapped and fills the bag until it cannot hold any more, at which point it pops! 

Lava Lamps

Pupils learning about the densities of different liquids and their reactions with different liquids and carbon dioxide. 

Junior Infants were also experimenting with lava lamps!

Skittles!

First Class discovered sugar melts in warm water. The shells of the skittles are made from sugar and when warm water is poured over them, they begin to dissolves and the colours begin to run creating a rainbow on the plate! It was great fun to watch!

Puking Pumpkins!

First class used baking powder, vinegar and food colouring to create a puking effect on a carved pumpkin.

Investigating Colours

Second class were investigating colours and carried out an experiment to separate them. 

Protect the Egg!

5th class created different landing crafts for eggs to investigate if they could prevent them from breaking when dropped from a height. They then analysed different group's designs to establish why some eggs did or didn't break. 

Best Coin Cleaner

Investigating which makes the best coin cleaner - vinegar, lemon juice, coke, water or ketchup.

Mentos & Coke

 Children in Third Class were investigating the reaction that occurs when mentos are added to coke. They used different funnel lids to see which creates the biggest geyser.