Vermiwash PowerPoint PPT Presentations

Vermiwash is a liquid fertiliser, a foliar spray, collected by passing water in a regulated way through a column of active live local earthworms being cultured in a container, being fed with cattle dung and straw.

Roots respond to the quality of organic inputs that are provided. Onions can be used to study these responses with much ease.

a simple way of setting hydroponics by children. assistance by teacher is desirable as the board needs to be cut with a sharp instrument and the aerator needs an electric connection.

To emphasize the need for protecting our land resources

Evaporation is a process by which water escapes from the soil into atmosphere

This experiment explains the principle of imbibition of water by the seeds and the pressure it can offer on the container.

simple to use turmeric as pH indicator

This is an exercise with reference to health and hygiene. To make children realise tooth decay starts with improper dental care.

To understand that the moulds (fungi) cause the decay of food stuffs such as bread, fruits, etc.

a simple method to show children the presence of genetic material...

To know about the variations in life in different waters

Unwanted salts present in the soil or water will make the plants more stressed and reduce the yield or complete death of the crop Sodium (Na) is not to be added for crop growth.

A simple study to principles of soil ecosystems...

To survey the occurrence of the following genetic traits among the students in a class, then in their families

This is an exercise with reference to health and hygiene. To make children realise the importance of washing their hands with soap and water.

A simple experiment to understand sensitivity and numbness.

To study the transport of water and other liquids through plants and understand function of xylem cells in transport of water and sap in plants.

A simple suggestion to make children calculate carbon footprint at school.

The transfer of energy from a source in plants through a series of organisms is called the food chain and their interlinking pattern is called the food web

To understand how trees can prevent soil erosion

A simple experiment to describe to a child the surface area of the lungs that effects in exchange of gases.

Fruit flies swarm in every orchard during the hot months. They thrive on the fruits that fall premature from the tree. August through October, you can also find them buzzing around any bowl of fruit on your kitchen table.  They especially love bananas

It is very simple to observe the cells of onions and tomato.

a simple experiment to demonstrate conservation of water by Rain Water Harvesting, contamination of ground water, etc

This experiment explains the principle of plants’ response to light

Transpiration is a process by which water vapours escape from the plant surfaces like leaves, stem, cuticle etc

To demonstrate how yeast converts sugars into carbon dioxide and ethanol

This experiment explains how a fresh command from the Central Nervous System (CNS) acts upon a previous command.

To germinate bean so as to see the developing stages

Milk is generally adulterated with either water or by starch

A simple experiment to prove erosion of stones by acids which may be due to acid rains as well.

The human tongue tastes different tastes and these locations are distributed on the tongue. Come let us taste to see which part of the tongue taste what.

With climate change and change in rain patterns schools can record rainfall in and around their schools and compare data. The rain gauge can be a useful device for that

Cells lining the inside of cheeks are called as stratified squamous epithelium. They are the surface of the mucous membrane. These flat, scale-like buccal cells are shed constantly as the tissue is renewed. By gently scraping the inside of the cheek, these cells can be harvested and observed under a microscope.

Small arthropods do a lot of work in soil litter, breaking the litter and assisting in composting process. You can see micro-arthropods through this experiment

To simplify teaching of the process of cell division from metaphase to cytokinesis an Over Head Projection can be made with simple tools.

A simple experiment to illustrate the principles of centrifugal forces.

simple experiment to teach endosmosis and exosmosis using grapes and riasins...

Though several methods are mentioned to observe respiration in germinating seeds, this experiment uses Phenolphthalein indicator with a water flush.

Honey is sometimes adulterated by sugar or molasses.

The blind spot is the area on the retina, without receptors, that respond to light. Therefore an image that falls on this region will not be seen. It is in this region that the optic nerve exits the eye on its way to the brain

One of the interesting things to do with a balloon is to “squeak” it. A balloon can be used to teach about vocal cords and sound production. This is very similar to the way we use our vocal cords to speak.

Acid rain is a consequence of pollution. Acid rain is a consequence of several undesirable gases especially the oxides of sulfur and nitrogen in the atmosphere released due to human activity such as industries. These gases combine with rain causing acid rains.

Osmosis is the diffusion of water across a semi-permeable membrane from an area of high water potential (i.e, low solute concentration) to an area of low water potential (i.e, high solute concentration).

Germination is a process by which seeds produce shoot and root from the endosperm. Favourable Temperature and Relative Humidity influence the germination process

Chilli powder is generally adulterated with Saw dust and artificial colours.

To study the principles of photosynthesis using Hydrilla plant

Succession is the natural, orderly change in plant and animal communities that occurs at the same place over a period of time. In all communities, the composition of species changes over a period of time. Ecological succession leads to species diversity as it progresses. Secondary succession generally occurs faster than primary succession and is more likely to actually occur than latter

A single diploid cell will divide to form 2 diploid cells. These 2 cells will each divide into 2 cells. In time, millions of cells are produced. The division of nuclear material in which each new nucleus obtains the same number of chromosomes and the same nuclear code as the original nucleus is called mitosis. Mitosis occurs in 4 phases with an inter-phase between each mitosis.

Chromatography is a method of separation of substances based on their different mobility in a given stationary support.

To maintain health and hygiene boiling water before drinking is recommended. Create animation on OHP sheets to teach to students

a simple method to teach about taxonomy

To study the principles of Inhalation and exhalation

To demonstrate how bacteria convert milk sugar to lactic acid to set curd

Earthworms show preferences to where they live. Check their preference by exposing them to make a choice between some choices offered.

Biological Symmetry is the balanced distribution of duplicate body parts or shapes. The body plans of most multi-cellular organisms exhibit some form of symmetry, either radial symmetry or bilateral symmetry. A small group of organisms do not exhibit symmetry (they are asymmetrical). Many flowers are radially symmetrical and flowering plants demonstrate symmetry of five, more frequently than any other form.