Earth Day Activity class-8 " Research Poster Presentation"

 Learners of Class VIII as a part of Earth Day celebration presented research poster on various issues of our earth and also suggested actions that can be done in day to day life to mitigate these issues. Some of the issues that they have talked about is invasive species of their areas and the damage they cause to the ecosystem, Plastic as a devil, Microplastic and its harm to the marine life, Water cycle and its imbalance by pollution. The activity was a great learning experience and gave immense knowledge to the learners by peer interaction and active discussions. 

Earth Day Activity Class-7 " Making Aquifer Model "

 

Learners of class VII as a part of Earth day activity made the aquifer model . Aquifers are a layer of rock or soil that can take in and hold water. They realsises the importance of ground water and the reasons why the ground water is becoming less .Ground water is a valuable resource throughout the world. Where surface water, such as lakes and rivers, are scarce or inaccessible, groundwater supplies many of the hydrologic needs of people everywhere. It is the source of drinking water for about half the total population and nearly all of the rural population, and it provides over 50 billion gallons per day for agricultural needs. Groundwater depletion, a term often defined as long-term water-level declines caused by sustained groundwater pumping, is a key issue associated with groundwater use. Many areas of the world are experiencing groundwater depletion.

Some of the negative effects of groundwater depletion:

• drying up of wells
• reduction of water in streams and lakes
• deterioration of water quality
• increased pumping costs
• land subsidence

The activity was a great learning experience for the learners and they realised the importance of ground water. 

Class- 8 SCIENCE Activity: observing stomata in leaf

 

Learners of Class VIII performed the individual activity in which they performed the analysis of stomata from the leaf of lily. It was demonstrated in the class how to prepare the slide of stomata with lily leaf. The leaf was taken, then broken so that the thin layer of epidermis comes which can be put on the slide . Safrannin solution was dropped over it and coverslip was put. It was observed under the microscope. 

The learners was very much engaged and focused on analysing the stomatal pore in the leaf.

Class -7 SCIENCE Activity: Modelling Respiratory system

 

Learners of class 7 performed individual activity in which they prepare model of human respiratory system. They took waste bottle, balloons, pipe, scissors, tape to make the model. Step 1: ​Cut the Bottom Off Your Plastic Bottle, Step 2: Carefully Cut/screw a Hole in Your Bottle Cap Step 3: ​Cut Your Straws to Be Your Windpipe, Step 4: Prepare Your Balloons to Be Your Lungs, Step 5: Attach Your Lungs to Your Windpipe, Step 6: ​Put Your Lungs Into Your Bottle, Step 7: ​Prepare Your Plastic Wrap to Be Your Diaphragm, Step 8: Make and Observe Your Lungs Inhale and Exhale!, With the help of model making they easily understood the mechanism of inhalation and exhalation of air into and out of the lungs.