Review the key concepts, formulae, and examples before starting your quiz.
🔑Concepts
Plants are classified into different groups based on their size, the nature of their stem, and their life span.
Herbs: These are very small plants with soft, green, and delicate stems. They usually live for only one or two seasons. Examples include , , and .
Shrubs: These are medium-sized plants with hard and woody stems. They have branches starting from the base of the plant, giving them a bushy appearance. Examples include , , and .
Trees: These are tall and big plants with a very thick, hard, and woody main stem called a 'trunk'. Trees live for many years. Examples include , , and .
Climbers and Creepers: Plants with weak stems that cannot stand upright. Climbers like use support to grow upwards, while Creepers like grow along the ground.
Photosynthesis: The process by which green leaves prepare food using sunlight, water (), and carbon dioxide ().
📐Formulae
💡Examples
Problem 1:
Identify the type of plant: A plant has a thick, brown, woody trunk and provides shade in a park. What category does it belong to?
Solution:
Tree
Explanation:
Plants with a single, thick, woody stem (trunk) and a tall structure are classified as Trees.
Problem 2:
Why is a plant considered a herb while a plant is a shrub?
Solution:
Difference in stem type.
Explanation:
has a soft, green stem that is easily breakable (Herb), whereas a plant has a hard, woody stem with branches starting near the ground (Shrub).
Problem 3:
Fill in the blank: During the process of making food, plants release a gas called _________.
Solution:
()
Explanation:
During photosynthesis, plants take in and release into the atmosphere.