Ms Druhan showed us two eggs and told us that one was raw and one was cooked. We had to figure out which was which. We named the eggs Al and Bertie! We felt them at first but we couldn't figure it out. We decided to put them in water to see if they would float or sink. The first container was too small so we got a bigger one. They both sank! We thought about the insides of the eggs. The raw one was liquid inside and the cooked one was solid inside. If you shake something solid, it stops moving when you stop shaking it. However, if you shake something liquid the liquid keeps moving when you stop shaking. We decided to spin the eggs. When we spun the eggs and stopped them, one of the eggs kept moving and the other egg stopped. We discovered that Al was raw and Bertie was cooked. We cracked Al into a container to check if we were right. We were correct!
Then Ms Druhan asked us to try and make the egg stand. We were not allowed to hold it! We eventually decided to use salt. We poured out a mound of salt and placed Bertie in the salt. He stood up! Gradually we blew away some of the salt. Bertie managed to stay standing with just a few grains of salt holding him up. It was amazing!
Ms Druhan asked one of the students in our class to fill a glass with water. We thought that the glass was full but it wasn't! One by one we put coins into the glass. The water level raised above the glass and it looked like there was a skin on the water. We managed to put in 44 coins before the water spilled out of the glass.
Before Christmas we started Aistear in our classroom. We are learning through structured play. Our first theme was Santa's Workshop.
We looked at some pictures of structures and we identified different 2-D shapes.
Then we made a square and a triangle using cardboard strips and pins.
Next we tested the two shapes to see which was stronger. When we pushed the square, it fell over. When we pushed the triangle, it stayed up. Triangles are stronger than squares!
We put a cardboard strip through the middle of the square to make two triangles and this made the square stronger.
Finally we used jelly sweets and cocktail sticks to make our own structures. We made the structures using triangle shapes as they are the strongest!
We got into our groups and each group were given the same amount of materials (A4 paper, slips of paper, squares of paper, post-its, masking tape, glue and scissors). The challenge was to build the tallest free standing tower that we could in 15 minutes. Have a look at our towers!
Ms Druhan gave us all a helicopter template. Some helicopters were big and some were small. Some were made out of paper and some were made out of card. We cut out the helicopters and we folded them into shape. We all designed our own helicopter. We went to the hall and tested them out. They flew!
In October, Ms Druhan set us the challenge to design a boat that would float and carry passengers.
Firstly we used playdough. The playdough was very hard and we found it difficult to make a boat shape and to make the boat float.
After a few attempts, we decided to use a different material. We chose tinfoil instead of playdough. We all received the same size piece of tinfoil. We set out to create a boat. We all managed to float our boats. We used dry peas as our passengers and we counted to see how many passengers our boats would hold before sinking. We tried to redesign our boats so that they would carry more passengers. We were great captains!