Category Archives: Science Week
Can Paperclips Float? Why?
2nd class discovered a fascinating fact about water when conducting experiments to test if a paperclip can float by itself. Crazy? After all, it should sink as it is heavier than water!
However, equipped only with the statement that paperclips can float, the children set about testing this hypothesis. They succeeded in doing so and learned that water has a skin (surface tension), which enables paperclips to float. Science is so cool!
Scientists at work!
Success!
Surface tension is the reason water gliders can walk on water. Amazing!
Using straws as “pipettes”, the children also discovered that the skin (surface tension) of water keeps it from spilling over the coin. Instead the water forms a dome shape.
Science Week in 2nd Class! 👩🔬🧑🔬
We started celebrating Science Week by conducting a couple of experiments!
Firstly, we are looking at how water travels through plants. We filled clear plastic cups with water filled with food colouring and included celery. Each group has their own sample and we drew a line to show the water line. Over the week we will watch how much water the plants will absorb and how it’ll travel through the plant using the red and Green food colouring!
Our second experiment so far was seeing how to create lava lamps! We filled two jugs with water and food colouring. We added vegetable oil, then we got to the fun part! To create a chemical reaction, we added effervescent alka-seltzer tablets to the mixture to create lava lamps! We couldn’t believe it when we saw it!
We will be conducting more experiments throughout the week for science week!
Volcanic Eruptions in … Ms Rochford’s 2nd!
We conducted volcanic eruption experiments with our handmade volcanoes and formed hypotheses as to why this happens. Then we wrote procedures on how to do this as part of procedural writing. Finally, in another Science lesson, we discovered why and how materials react to cause the eruptions.
Group photos: Our volcanoes before eruptions!
Science Mad in Room 15
Today we inflated balloons using Carbon Dioxide produced by mixing bicarbonate or soda and vinegar in some bottles and yeast, sugar and warm water in others. Great success was had by most of our teams of scientists 🙂
