Worksheet 5 – Environment & Bioaccumulation
� Key Bites
- Pollution enters food chain → bioaccumulation.
- Toxins increase at higher levels.
- Use compost/natural methods to reduce chemicals.
� Tasks
1. MCQ: Choose the correct answers about pesticides & food chains (5 questions).
2. True/False: Statements about chemicals in food chains (5 statements).
3. Math: If pondweed = 2 units, fish = 50 units, how many times more? (3 marks).
4. Fill-in table: producer, primary consumer, secondary consumer, top predator (4 marks).
5. Short Answer: Why are top carnivores most affected? (3 marks).
6. Extended: Suggest 3 ways humans can protect the environment from harmful chemicals
(5 marks).
0
