Air as a Force
The children in Senior Infants and First class were exploring the force of air. We decided to carry out an experiment to find out the effect cold air has on a balloon. A straw, string, sticky tape and a balloon were needed for this experiment. Firstly, the children predicted what they believed would happen to the balloon when the air was allowed to escape. The children carried out the experiment in small groups and then they shared their findings with the rest of the class. The children observed that air was the force that pushed the balloon forward along the line of string.
Third Class – Sound
Musical Jars
Pupils got 8 empty jars.The first one was left empty. Water was added to the second jar and an increasing amount of water was added to the remaining jars until the last jar which got the most water.
Using a metal spoon we were able to tap the jars and listen to the different pitched sounds.We had great fun singing our doh,re,mi using our musical jar.
Science Background
When you tap a glass of water with a spoon the water molecules vibrate and create sound waves through the water. More water means slower vibrations and a deeper tone. Each of the bottles will have a different pitch when hit with the spoon. The jar with the most water will have the lowest pitch while the jar with the least water will have the highest.
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Bláthú learning and Exploring the world of Magnets
Exploring Electrical Circuits in 4th and 5th class