IV. An Inner Echo: A call to Action!
DIRECTIONS: Read the article below and relate it to the movement of molecules of the three states of matter. Reflect by answering the guide questions below.
III. Brain Collision
DIRECTIONS: Perform the given tasks and answer the given questions.
TASK:
Transfer water from a glass to a plastic bottle. Observe the shape of the water in a plastic bottle.
Get an inflated balloon and try to compress it at the center. After 10 seconds, release the balloon and observe its shape.
Pour a handful of mongo seeds into a plastic bottle. Observe the shape of each piece of mongo seed inside a plastic bottle.
GUIDE QUESTIONS:
Did water occupy the space on a plastic bottle?
Did water take the shape of a plastic bottle?
Did you find it easy to compress the balloon?
Did the balloon retain its shape after compressing it?
Did the mongo seeds take the shape of the bottle?
Did each piece of a mongo seed change in shape?
POLLUTION, ARE WE AT RISK?
Pollution is one of the national environmental issues we must attend to. Pollution in the air, water, and land has been a problem in many countries worldwide. When confronted with this issue, our immediate reactions are to blame emissions coming from industries and some establishments, the chemical fertilizers used by farmers, and smoke-belching vehicles.
Contaminants may exist in the form of three phases of matter. Some examples of solid pollutants are garbage, domestic sewage, dust particle, and pollen grains. Liquid chemicals such as pesticides, household products, toxic wastes from factories, and oil spills from gasoline and service stations can go to the different bodies of water and affect aquatic organisms. Smog and gaseous pollutants from transportation and industrial factories spread quickly in the atmosphere.
It is commonly believed that exposure to this fine particle pollution has been linked to various health problems, including respiratory illnesses such as coughing, irritation of the air passage, asthma or difficulty of breathing, reduced visibility for air and land transport, and formation of acid rain.
Guide Questions:
1. What examples of solid, liquid, and gaseous pollutants are mentioned in the article? Give their harmful effects.
POLLUTANTS
Solid
Liquid
Gas
2. Why do pollutants spread easily in air and water? Relate your answer to the movement of the particles of the three states of matter.
Let's Analyze!
1. How does the arrangement of particles of the three physical states of matter differ from each other?
Solid:
Liquid:
Gas:
2. Compare the fluidity and compressibility of the three states of matter based on the force of attraction between particles.
3. Explain why solids have a definite shape but not liquids and gases?
Think and Reflect:
List three things you can do as a student to minimize the spread of pollutants in the atmosphere.
1.
2.
3.