Joining recent learning about the Australian Gold Rush, and finding out about blacksmithing and precious gems in our class novel, the upper primary class have begun an investigation into rocks, minerals, metals and crystals.
Our inquiry questions are varied, but we are keen to seek answers to our queries.
Here are some examples of our 'wonderings'....
I wonder why there is not a lot of gold - why is it rare? How is gold formed in nature?
How are rocks made? How was the Earth formed?
How does agate get it's detailed patterns?
How big can crystals get? How many types of crystals are there? Where in the world can you find the most crystals?
If everything is made from stardust, what force makes it come together to make new objects?
What is coal and where does it come from?
We have begun investigating the answer to one of the questions - "Can crystals be made by people or do they only occur in nature?"
Turns out, we can create or 'grow' crystals! So...the alum crystal growing competition has begun! Teams are working together to grow the biggest and perefctly formed crystal made from alum (aluminium potassium sulfate dodecahydrate).
On Thursday during practical science lessons we found out about dissolvability (or solubility), and how to make solutions (mixtures made from dissolved substances in water). Tests were designed to work out if mystery substances were soluble. Dissolvable substances included different types of sugar and salt, while flour and pepper were non-soluble.
This knowledge helped students to make saturated alum solutions for starting the crystal growing process. Good luck teams!
Photos of teams designing their investigation and demonstrating school values of Respect and Aspiration...