Effect of tropism on germination of seeds- IGCSE Xth

 Learners of class Xth performed an investigation in which they have observed the efffect of tropism on growth of plants through germinating cress seeds.  

They set up four petridishes

Petridish-1: Cress seeds (10 in number) , soaked cotton, water and placed in sunlight

Petridish-2: Cress seeds (10 in number), Soaked cotton, water and placed in dark

Petridish-3: Cress seeds (10 in number), soaked cotton, water and sunlight only from one point

Petridish-4: Cress seeds (10 in number), soaked cotton, water and sunlight but placed vertically

They observed

Petridish-1: Growth of seeds

Petridish-2: Growth of seeds but the leaves appear yellow in colour

Petridish-3: Growth of seeds but the leaves turned towards the source of light

Petridish-4: Growth of seeds but the leaves rise vertically up in direction of sunlight.

The investigation made students more confident in understanding of the role of auxins( plant hormone) in controlling tropic responses. 

 

Science Month Activity Class VIII

 

Learners of stage-9 performed their April month science activity in which they have to make models of futuristic gadget that can solve the problem of climate crisis. Class was divided into groups of five, with five members in four group and four members in one group. 

Group-1 showed the drones which can capture the atmospheric carbondioxide and can move into collection centre to clear its filters. From this captured carbondioxide eco bricks can be made.
Group-2 showed the hydroponics way of doing agricultre reducing transportation. 
Group-3 showed Futuristic Climate Control and Smart Weather Alert System.The aim of our project is to develop a smart system that can help reduce pollution, manage environmental changes, and provide early warnings to protect both life and nature.
Group-4 showed rainwater conservation Many roads have concrete surfaces. Because of this, rainwater cannot soak into the ground easily. When it rains, the water collects in one place.   So, cities need a smart way to manage rainwater.
Group-5 showed climate crisis is driving severe global impacts, causes severe food/water scarcity. designed a simple filtration model using two containers placed at different heights. Each layer represents a stage of purification:  Rocks stop large impurities  Soil traps smaller particles  Charcoal absorbs harmful substances and removes bad odor  Cotton acts as the final filter As seawater flows down through each layer, it becomes cleaner and cleaner. While this model does not remove salt completely, it shows how water can be purified step by step using simple materials.  

The Activity made learners more sensitized towards climate and aware all about consequences and ways of reducing it.  

Igcse classification of living organisms activity

learners observed specimens of organisms belonging to different groups in kingdom , this usually means:

• Observing specimens or models (plants, animals, slides)
• Identifying their kingdom or group
• Noting characteristics like:
  • Body structure
  • Movement
  • Mode of nutrition

Example:

• Mushroom specimen → Fungi
• Amoeba slide → Protista
• Leaf of fern → Plantae
• Mice, pigeon, snake, butterfly → Animal

The activity made learners more clear about the organisms classification and their characteristic feature. 

Nutrition Box Activity

 

A nutrition box activity, often used in schools, educates children on healthy eating by having them sort, create, or pack balanced meals. Activities include building a "food rainbow," packing lunches with fruits, veggies, and proteins, and using cut-out activities to teach about nutritional food groups.

Students pack a healthy lunch and spoke briefly about the nutrients, it helped boosting confidence and promoting healthy choices.