KEA NEWS WEEK 4

 

Kea's Learning Experience: Volcanoes!

Have you ever made volcanoes explode before? Well if not, let us tell you how we did our science experiments! You will create a chemical reaction between baking soda and vinegar. You will also need food colouring, a small container for the top and dishwashing liquid.

Step one: Mould a composite volcano cone shape out of sand or materials of your choice. Make sure you have a cylinder shaped small container at the top for your ingredients.

Step two: Add 2 heaped tablespoons on baking soda.

Step three: Add a dash of red food colouring as red as lava!

Step four: Add a tablespoon of gooey dishwashing liquid.

Step five: Add 1 cup of vinegar and watch the chemical reaction occur!

Step six: Try it again! What happened? What would you change?

We did a mentos experiment afterwards and then did a venn diagram to compare the two.

Kea News Week 3

Science Experiment

Yesterday, Kea did a science experiment creating cave stalactites and stalagmites to understand how stalactites continue growing through a chemical reaction (a tapering structure hanging like an icicle from the roof of a cave, formed of calcium salts deposited by dripping water)Some groups experimented using baking soda and others used Epsom salts. My group used baking soda and our hypothesis is that we think crystals will grow off the wool.

First, we had to add two heaped tablespoons of baking soda or Epsom
salts to hot water. We watched it fizzle and dissolve.
Next, we needed to stir it to dissolve it. This created a concentrated solution. This made it bubble like a bubble bath!

Afterward, we submerged a piece of twisted wool or paper towel into the solution. Then we placed each end of the wool/paper towel into our solutions and placed a piece of cardboard in between, hanging the wool above the cardboard.
We can't wait to see what's happened tomorrow morning and throughout the week!  I wonder if our hypothesis was correct or not?

Kea News Week 1 & 2 - Camp