Natural Science - Term 3 - Week 10

Application tasks are designed to help students use their knowledge in practical situations. This week, we will focus on applying concepts from our previous lessons in Natural Science. We will work on tasks that require critical thinking and problem-solving skills, allowing you to see how science is relevant in everyday life. Key vocabulary will also be reinforced to ensure you can communicate your ideas effectively.

Consider the following scenario: You are tasked with designing a simple water filtration system. First, identify the materials you would need, such as sand, gravel, and charcoal. Next, describe the process of how each material contributes to filtering the water. This example illustrates how to apply scientific concepts to solve real-world problems, demonstrating the importance of clean water and the role of filtration.

In groups, you will conduct a simple experiment to observe the effects of sunlight on plant growth. Each group will plant seeds in two pots, placing one in direct sunlight and the other in a shaded area. Over the next week, you will measure the height of the plants daily and record your observations. Discuss with your group how sunlight affects photosynthesis and plant health, using the vocabulary we have learned.

Choose a natural phenomenon, such as erosion, photosynthesis, or the water cycle. Research your chosen topic and prepare a short report that explains the process, its importance, and any relevant vocabulary. You will present your findings to the class next week. This task will help you apply your research skills and deepen your understanding of the topic.

• To memorize facts
• To apply knowledge in real-world situations
• To take tests
• To read textbooks

Answer: To apply knowledge in real-world situations

Application tasks are designed to help students use their knowledge practically, enhancing understanding.

Answer: Sand

Sand is often used in filtration systems because it helps to trap larger particles and impurities.

• Respiration
• Photosynthesis
• Transpiration
• Evaporation

Answer: Photosynthesis

Photosynthesis is the process by which plants convert sunlight into chemical energy.

Answer: Increases growth rate

Sunlight is essential for photosynthesis, which directly affects the growth rate of plants.

• The process of water cycle
• The wearing away of soil and rock
• The growth of plants
• The evaporation of water

Answer: The wearing away of soil and rock

Erosion is the process that removes soil and rock from one location and transports it to another.

Answer: Clean water is essential for survival and health.

Living organisms need clean water for hydration, growth, and metabolic processes.

• To absorb impurities
• To add flavor
• To increase water temperature
• To change color

Answer: To absorb impurities

Charcoal is effective in filtering water because it can absorb various impurities and contaminants.