Earth & Life Science
Middle-school science: cells, ecosystems, rocks, and the water cycle.
Mr. Kofi Mensah
Science Teacher
Cells & Food Webs
The unit of life and how energy flows.
Earth Systems: The Cycles
How rock and water move in cycles.
Plate Tectonics
Why the ground shakes and mountains rise.
Energy Flow in Ecosystems
How energy moves through living things.
Common questions
Who is "Earth & Life Science" for?
It is written for learners at Middle School level (Grades 6–8), and for anyone older who wants a clear refresher on science. Middle-school science: cells, ecosystems, rocks, and the water cycle. There is no application or entry test — you can start the first lesson straight away.
How long does the course take?
There are 4 lessons totalling 30 minutes of reading and quizzes, laid out over 2 units. You can move at your own pace — progress is saved as you go.
What do I need to know before starting?
No prior coursework is assumed. The course opens with "Cells & Ecosystems", covering the cell and food webs, so the foundations are built in rather than expected.
Is the course free?
Yes. Every course on Monster Class is completely free, with no credit card, trial period or paywall. Creating a free account simply saves your progress, XP and place on the leaderboard across devices.