Practice Extended Learning — Activities and Projects - 2.9 | 2. MICROORGANISMS: FRIEND AND FOE | CBSE 8 Science
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2.9 - Extended Learning — Activities and Projects

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What are microorganisms?

💡 Hint: Think of examples like bacteria and fungi.

Question 2

Easy

What does fermentation produce?

💡 Hint: What do we often find in bread?

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What type of microorganism is used to make yogurt?

  • Bacteria
  • Virus
  • Protozoa

💡 Hint: Think of the common cultures used in dairy products.

Question 2

True or False: All microorganisms are harmful.

  • True
  • False

💡 Hint: Recall examples of useful microorganisms.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Design an experiment to observe the fermentation process in yeast. What materials would you need, and what results do you expect?

💡 Hint: Consider what conditions yeast requires to thrive, like warmth and sugar.

Question 2

Evaluate the role of microorganisms in soil health and how they contribute to the ecosystem.

💡 Hint: Focus on the nutrients that plants absorb from the soil.

Challenge and get performance evaluation