10 Questions
What is the main purpose of a compass?
To find the direction you are facing
What is the name of the point on a compass that always points towards the Earth's North Pole?
Magnetic North
What is the direction that is opposite to the north direction on a compass?
South
If you are facing north, what direction would you be facing if you turned 90 degrees to your right?
East
Raj is walking in a forest and needs to find his way back to his camp. What tool would be most helpful to him?
A compass
What is the primary function of stems in plants?
To support the plant's structure and transport water and nutrients
What type of root system allows plants to absorb water and nutrients from a larger soil volume?
Fibrous root
Which process is responsible for water transport within the plant?
Transpiration
What would happen if the balance between photosynthesis, respiration, and transpiration is disrupted in a plant?
The plant's growth and development may be affected
What is the primary axis of the plant?
Stem
Study Notes
Importance of Plants
- Plants provide food, clean air, and numerous other benefits to humans and the ecosystem.
- They are the foundation of the food chain and essential for maintaining ecosystem balance.
Leaves
- Leaves are the primary site of photosynthesis, where plants convert carbon dioxide, water, and sunlight into carbohydrates, releasing oxygen as a byproduct.
- Chlorophyll in chloroplasts within mesophyll cells absorbs sunlight and traps energy to create glucose, used as energy by the plant.
- Leaves come in various shapes and sizes, adapted to different environments and functions.
Roots
- Roots serve multiple purposes: anchoring the plant, absorbing water and nutrients from the soil, and providing stability against gravity.
- Roots come in various shapes and sizes, including taproots and fibrous roots, each suited to different environments and functions.
Stems
- Stems support the plant's structure, transport water and nutrients from roots to leaves, and enable plant growth.
- Stems come in various shapes and sizes, from small, cylindrical stems to large, woody trunks.
Plant Processes
- Plants balance photosynthesis (produces energy), respiration (releases energy), and transpiration (water transport) for growth and development.
- Disruption of any process can affect plant growth, yield, and survival.
Knowledge-based questions:
- What are the main functions of plant roots?
- What is the primary site of photosynthesis in plants?
- What are the three key processes that plants must balance for growth and development?
Application and Comprehension-based question:
- How do the shape and size of leaves adapt to different environments and functions, and what benefits do these adaptations provide to the plant?
Test your knowledge of compasses and directions with this quiz. Learn about the main purpose of a compass, its key points, and how to navigate using directions. Practice your problem-solving skills with real-life scenarios.
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