Ecosystems: relationships, energy flow and cleaning water
Answers are for parents and teachers.
1
Make a three-link food chain from where you live and name each link.
For example: grass (producer) → hare (first-order consumer) → fox (second-order consumer).
2
If producers hold 5000 kJ, about how many kJ pass to herbivores (10 percent)?
500
3
Observe how your family uses water in a day and write 3 ways to save it.
For example: turn off the tap when brushing teeth; fix dripping taps; save water when washing dishes.
4
Write step by step how to make drinking water safe at home.
Take it from a clean source; settle or filter muddy water if needed; boil it; cool it; store it in a clean covered container.