Hydrogen is the most common element in the universe but it only makes up 0.000055% of the air we breathe. Does this make it the element of surprise?
Q: What do you do with a sick chemist?
A: Well if you can’t Helium and you can’t Curium, then you might as well Barium.
Year 8 begin their term of chemistry with an examination of the periodic table of elements. They investigate common metals and non-metals and see how they are extracted from ores, and they build 3D models to understand elements, compounds and mixtures.
Next, they perform various physical and chemical reactions in their kitchen labs (and virtual labs) and learn how to detect the presence of newly formed chemicals and what they are. This is the foundational chemistry unit where students start to use the chemical symbols and write chemical and word equations for common chemical reactions.
Differences between elements, compounds and mixtures can be described at a particle level (ACSSU 152)
Chemical change involves substances reacting to form new substances (ACSSU 225)
Science as a human endeavour
Scientists construct explanations about the natural world based on evidence and these explanations change when new evidence becomes available. The science of today will lead to the technology of tomorrow as scientists work collaboratively, using new skills and modern methods. Only a high level of scientific understanding among people of all cultures will ensure that governments follow ethical considerations when legislating the use of emerging technology. (ACSHE 119, 223, 120, 121)
Science inquiry skills
This term Year 8 will work individually or in small groups to produce a project on a chemical reaction: which allows student choice; is organized around an open-ended question; requires inquiry to learn and/or create something new; requires critical thinking, problem-solving, collaboration, and various forms of communication (often known as 21st-century skills); incorporates feedback and revision and results in a presentation. (ACSIS 124, 125, 126, 129, 130, 131, 132, 133)
Week 1 – Orientation week
Week 2 – Elements
Week 3 – Compounds and mixtures
Week 4 – Minerals
Week 5 – Carbon
Physical and chemical change
Week 6 – When substances change
Week 7 – Understanding physical change
Week 8 – Chemical reactions
Week 9 – Chemicals in industry
Week 10 – Scientific models
Commence Monday 5 October
Finish Friday 10 December