90930 Chemistry investigation
This course is part of your preparation for achievement standard 90930.
It follows on from the Level 1 Science Investigations Skills Pack, where we introduced you to the basics of how to plan, carry out and report a science skills investigation. You should work through that Level 1 course before completing this one.
Then in this course we’ll explore the more chemistry-specific aspects of practical investigations. We’ve divided this course into a number of section:
- Section 1: The scientific investigative process – a quick recap of the investigation process as a whole.
- Section 2: Chemistry techniques – some additional chemistry techniques you might need to know for your investigation such as working safely in the lab, preparing solutions of known concentrations, using element symbols and working out chemical formulae, as well as writing and balancing chemical equations.
- Section 3: Planning, conducting and reporting on your chemistry investigation – where you’ll have the opportunity to practise the skills of practical investigation in several chemistry contexts.
This course covers the things you’ll need to know and be able to do for Achievement Standard 90930 (Chemistry 1.1) Carry out a practical chemistry investigation, with direction through examining your ability to:
- decide on a hypothesis relevant to a given purpose statement/aim
- identify and control variables
- develop a step-by-step procedure to test that hypothesis, from an outline of a method, using techniques relevant to the chemistry context
- record primary (raw) data
- process the primary (raw) data appropriately (e.g. calculations, tabulating, graphing)
- interpret the processed data
- relate findings to the purpose to reach a conclusion.
Preparing for your assessments
Just like any achievement standard, there are different requirements for you to pass with Merit or Excellence.
For Achievement Standard 90930
Achievement with Merit
Achievement with Excellence
Carry out a practical chemistry investigation, with direction.
Carry out an in-depth practical chemistry investigation, with direction.
Carry out a comprehensive practical chemistry investigation, with direction.
You can read more about Achievement Standard 90930 and what’s expected in these explanatory notes.
How you’ll learn
People learn in different ways. Here are some of the ways you can learn and interact with the materials in this course.
Self-paced learning – This online course is set up so you can learn at your own pace. So, although there are ‘suggested’ times for each page, they’re just a guideline. Plan your learning to suit you.
Diagrams, videos and interactions – Some people prefer to learn by reading, some by watching and listening, and some by doing. We’ve used diagrams and videos alongside the text, so that there’s something for everyone!
Practice activities – Throughout this course there are lots of short activities. These activities are for you to check your own understanding, not for someone to mark them. These activities give you a great chance to practise what you’ve learned and compare your answer with the model feedback without being assessed.
Glossary – We’ll be using some technical words and phrases in this course to do with scientific investigations. To help you grow your vocab around the topic, the course includes an online glossary. When you see a word or phrase underlined in the text, move your cursor over it and a definition will pop up – easy!
Discussions – Sharing with others can also be a great way to learn. Talk with your classmates and teacher at school about the ideas you come across in this online course. Even chat to your family at the dinner table about the things you’re learning – if you can explain the ideas to others, you can really be confident in your own understanding.
So, let’s get started!