Green technology asks you to use science to judge choices that affect energy, waste and resources. This page shows how the four skills connect and where to begin.
The cluster sits inside SPM Science. It pairs well with environmental sustainability, which looks at the problems these technologies respond to.
What are the four skills in this cluster?
Each lesson builds on the one before it, so the order below is the order to study.
- Classifying green-technology applications: what each application is for.
- Comparing energy choices using supplied data: reading a table before choosing.
- Explaining resource conservation: reduce, reuse and recycle with reasons.
- Evaluating claims using a stated criterion: deciding if a claim is supported.
Then test the cluster with the green technology practice set.
Why does a stated criterion matter?
Take this example. A school says its new bin system is green. Two students are asked to judge the claim.
The first writes “it is good for the environment”, which is an opinion and earns little. The second is given the criterion “less waste sent to landfill” and a table: 300 kg a week before, 210 kg a week after.
The second student calculates 300 − 210 = 90 kg, and 90 ÷ 300 = 30%, then writes “waste to landfill fell by 30%, so the claim is supported for this criterion.” The data and the criterion, not the feeling, decided the answer.
Who should start where?
If you cannot yet sort applications by purpose, begin with lesson one. If you know the examples but freeze when a table appears, begin with lesson two and use the graph evidence and fair-comparison lab.
If your answers sound right but lose marks, go to lesson four. The Science glossary explains the question words.
If you want a teacher to work through the cluster with you, see online one-to-one Science tuition.