Experimental Sciences

Monthly Archives: November 2019


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CISM’s Science Guild

The science guild is an afterschool, mentor-based program provided by the school to promote an interest in the different areas of sciences. It is headed by Ms. Marian Asuncion and Ms. Charmaine dela Cruz. Club activities are held every Wednesday in room 402.

The aim of the science guild is not only to teach students basic scientific facts. It also promotes interest in the different areas of science through activities and experimentation

The aim of the science guild is not only to teach students basic scientific facts, it also aims to promote interest in the different areas of science through activities and experimentation

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Making a River System Model

A river system is a number of interconnected rivers that form because of the natural movement of water down a slope. It consists of the main river and different smaller rivers that drain into bodies of water such as a lake or the ocean. In this simple science activity, the students learned how natural river systems are formed through the use of a simple soil model.

The patterns formed are similar to those found in nature.

The patterns formed are similar to those found in nature.

In this picture, a student is making the soil more compact by pushing on it with his hands.

In this picture, a student is making the soil more compact by pushing on it with his hands. The purpose is so that the model somewhat resembles the natural compactness of soils found near rivers.

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PAG-ASA Field Trip

PAGASA, which is also known as “The Philippine Atmospheric, Geophysical, and Astronomical Services Administration” is a government-mandated agency that provides information to the public in order to ensure the safety, well-being and economic security of the people of the Philippines. It also provides a wealth of information to the public to help them better understand meteorology, hydrology, climatology, astronomy and other geophysical sciences.

The computers in the picture told students how weather is predicted

Weather prediction by the use of different computers

Grade 8 and Grade 9 students, as well as their teachers Ms. Madhumita Saini and Ms. Marian Asuncion,  went to PAGASA to learn and understand how the organization predicts weather.

The students were accompanied by two of their science teachers

The students were accompanied by two of their science teachers

It is important for students to understand how weather is predicted because these predictions affect our day to day activities. Students should also understand that weather prediction is not as easy and as straightforward as it may appear to be.

One of the employees of PAGASA showed the students how a tipping bucket recorder worked. It is a rain gauge and it's considered as one of the most traditional tools used for weather station applications.

One of the employees of PAGASA showed the students how a tipping bucket recorder worked. It is a rain gauge and it’s considered as one of the most traditional tools used for weather station applications.

The Grade 9 students then learned how to correlate the weather predictions to benefit people with heart anomalies.

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Heat Transfer: Conduction, Convection and Radiation

Three different experiments were conducted by Grade 8 students to demonstrate heat transfer through conduction, convection, and radiation.

Conduction

To see the evidence of conduction, a spoon was heated by the use of boiling water. The difference in temperature of the boiling water, as well as the spoon, caused heat transfer between the two objects. After some time, the water and the spoon had the same temperature.

The spoon being heated up using boiling water

The spoon being heated up using boiling water

Convection

Convection is another method of heat transfer. It is due to the movement of a fluid (liquid or gas) between areas of different temperatures. In the experiment, the circular movement of the pencil shavings showed convection currents that occurred in hot water.

In this experiment, the spoon was removed and pencil shavings were placed into heated water. Due to the difference in temperatures of water from varying depths (surface/bottom), convection current occurred as evidence of the movement of the pencil shavings.

In this experiment, the spoon was removed and pencil shavings were placed into heated water. Due to the difference in temperatures of water from varying depths (surface/bottom), convection current occurred as evidence of the movement of the pencil shavings.

Radiation
This experiment was done by asking students to get close to the heat source. Students could feel the heat radiated by the hot plate.

  • http://www.deped.gov.ph/