Topics in Basic ScienceLen Academy Examination Questions for Basic Science, JSS2, 2nd Term Len Academy Examination Questions for Basic Science, JSS3, 3rd Term Len Academy Examination Questions for Basic Science, JSS3, 2nd Term Primates - Characteristics of Primates Effects of Improper Waste Management Waste Management: Causes of Waste Concept of Mass and Weight Sources, Functions and Deficiencies of Mineral Salts (Macro-nutrients) Sources, Functions and Deficiencies of Mineral Salts (Micro-nutrients) Len Academy questions for Basic Science JSS1, second Term Len Academy mid-term test questions for Basic Science JSS1, 2nd Term Micro organisms causing food, water and air borne Diseases Vectors - Examples of Vectors, Vector borne Organisms and the Diseases they cause Bones of the Human Skeleton Meaning of Drugs, Type of Drugs and Side effects of Drugs Immunization, Processes involved in immunization and its importance Food: Carbohydrates and Sugars Uniqueness of Man: Unique Characteristics of Man Waste Management: Types of Waste Matter: Concept of Matter
Academic Questions in Basic Science
Which of the following statement is FALSE concerning mass and weight?
A. Mass is the amount of matter in a body
B. The element hydrogen has the smallest mass
C. You will weigh more on planet jupiter than earth
D. Weight is a function of gravity
E. Mass and Weight have different Standard International (S.I) Units
F. None of the above
Which of the following statement is FALSE concerning matter?
A. Anything considered as matter must either have mass or occupy space
B. Air is an example of matter
C. Plasma is a state of matter
D. Chemistry is considered as the study of matter and the changes they undergo
E. Vacuum is a space completely void of matter
F. Matter will always take up space no matter how small or invincible it is to the eyes
Which of the following is NOT matter?
F. None of the above
The ultimate source of energy is _____.
The speed of wind is measured with a wind vane.
TRUE or FALSE
The nutrient majorly found in the liver is _____.
A body at rest possess _____ energy.
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Waste Management can be defined as the process of collecting, processing, recycling and controlling any material considered as waste.
Wastes are generated from homes, factories, market places, hospitals, schools, industries and many other places. The growth and development of Nations where these wastes are prevalent will be adversely affected.
Below are some of the effects of improper waste management:
The burning of waste materials like plastics, papers and rubber will contaminate the atmosphere with gases like carbon(II)oxide, carbon(IV)oxide and sulphur(IV)oxide.
Atmospheric pollution via the release of toxic gases will also result from biodegradable waste (which are eventually broken down or decomposed by bacteria and fungi).
Also, waste may contain toxic chemicals like dioxin (produced from the rearing of broilers).
The pollution of the atmosphere as a result of these waste will negatively affect humans, plants, wildlife and other living organisms.
The pollution of water bodies by solid and liquid waste will result in the suffocation and death of aquatic organisms.
As an instance, oil spillage has been a major problem in the riverine areas (South-South region) of Nigeria.
Note: Crude oil or petroleum is a natural resource present in the South-South states of Nigeria.
The decomposition of biodegradable waste will result into the release of green house gases like carbon dioxide, methane and nitrous oxide into the atmosphere.
In addition, human activities like combustion and burning are constantly releasing more greenhouse gases especially through the release of carbon(IV)oxide into the atmosphere.
Excessive greenhouse gases have an adverse effect on weather conditions over a long period of time. This is so because these gases are gradually bringing about an increase in the temperature of the earth, giving rise to global warming.
Certain waste materials such as plastic containers, ink, oil and petroleum products will have damaging effects on the soil.
The aformentioned waste materials will adversely affect the growth of plants and other organisms living in and on the soil. As a result, the soil becomes less fertile and agricutural land and its activities becomes negativity affected.
With regards to the carbon cycle, plants are the only organisms that take away carbon(IV)oxide from the atmosphere. They do this through a process termed Photosynthesis.
Plants are also the only organisms that fixes oxygen back into the atmosphere. They do this through photosynthesis.
Note: Without atmospheric oxygen (generated by plants), humans and animals will cease to exist.
Carcinogens are substances that can cause cancer.
Radioactive wastes can be potentially damaging to humans when inhaled. They increase the formation of cancerous cells the human systems. Some may even cause leukemia, a form of blood cancer.
When excess waste materials find their way into gutters and pipes, blockage of such gutters and pipes will result.
Blocked gutters and drainages bring about flooding in the affected areas.
Also, stagnant waters will act as breeding sites for mosquitoes.
Wastes materials found in neighborhoods serve as homes to pest and pathogens. These pathogens will in turn cause diseases in the long run.
As an instance, Lasa Fever is a disease caused by pathogens carried by rodents dwelling in dirty environments.
Other diseases caused as a result of improper waste management includes cholera, malaria, fever, dysentery, diarrhea and tetanus.
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Alfred Ajibola is a Medical Biochemist, a passionate Academician with over 7 years of experience, a Versatile Writer, a Web Developer, a Cisco Certified Network Associate and a Cisco CyberOps Associate.
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Amazing facts in Basic Science
Rasceta is the name given to the lines on your ✋ palm ✋
Goats have rectangular pupils in their eyes.
Think of the pupil as a hole located in the centre of the iris within of the eye.
Note: To get an idea of an iris; 'when one is said to have blue eyes', it's because the iris is blue
Among all land animals, 🐘 Elephants 🐘 have the longest gestation period.
They stay pregnant for 22 months before giving birth to their young
🦘 Kangaroos 🦘 can't walk backwards
The 🥛 milk 🥛 of an 🦛 hippopotamus 🦛 is pink in color
The seed of all fruits are present on the inside with the exception of one.
That exception is 🍓 strawberry 🍓
🍓 strawberry 🍓 has it's seed outside the fruit
It actually takes 🍍 pineapples 🍍 2 years to grow
The liquid inside a coconut 🥥 can be used as an excellent substitute for your blood plasma
Elephants can't jump
NOTABLE POINTS IN Basic Science
The eyebrow is an area of dense, delicate hair just above the eye.
Eyebrows perform two main functions:
Eyebrow modified in the form of Nike logo.
Note: Eyebrows can also be modified to enhance beauty.
All fruits have seeds.
There is nothing like a naturally occurring seedless fruit. Even banana, coconut and pineapple have all got seeds.
Weight can be defined as the force of gravity acting on an object.
If you traveled to space, you would be weightless because there isn't any force of gravity acting there. We all have weight on earth becasue the force of gravity acts here.
Weight is measured in Newton
Mass is the amount or quantity of matter (substance) contained in a body. For instance, everything you are composed of, both from within and outside will make up your mass.
Mass is constant throughout the universe. You will have the same mass on earth and moon respectively.
Mass is measured in gram or kilogram and it's quite different from weight.
Matter is anything that has mass and occupy space.
Matter can exist in four states namely: