Family health is about how a family/home can stay healthy. Your home is your closest environment and should therefore be kept clean in order not to contract diseases. Dirt can pollute the environment and endanger your life and that of other people. This is because most germs that cause infectious diseases live in dirty or polluted environment. These germs, such as fungi, bacteria and viruses are transmitted to people by small animals or insects called vectors. Among these vectors are mosquitoes, cockroaches and houseflies.Everything around you and your family must be kept clean. Your family can have good health when they live in clean environment and take good food and fruits that are properly washed before they are eaten. Different kinds of food that will make you healthy should be eaten with plenty of clean water.  

Substance abuse refers to the harmful or hazardous use of psychoactive substances, including alcohol and illicit drugs. One of the key impacts of illicit drug use on society is the negative health consequences experienced by its members. Drug use also puts a heavy financial burden on individuals, families and society.

Our environment includes everything around us. When our environment is so dirty that it endangers our life and health, the environment is said to be polluted. If people carelessly throw away wastes, the environment will get polluted.

Matter is the nature of any substance on earth and also in the rest of the universe. Matter is a material substance that constitutes the observable universe and, together with energy, forms the basis of all objective phenomena. The three most familiar forms, or states of matter are solid, liquid, and gas. Heating and cooling a substance may change it from one state to another. In this chapter, matter is classified as living and non-living matter.

Energy is required for doing work. It is needed by both plants and animals. While plants need it for food production and growth, animals need it for growth and development. To survive, we need to perform different tasks which include walking, running, singing, dancing, eating, reading, writing, playing, planting, harvesting and carrying things from place to place. As we carry out these tasks, movement is involved, sound is produced, light is needed and used, and we sweat in the process to indicate some heat being produced.

There are two major categories of energy: renewable and non-renewable. Renewable energy which includes solar, wind, water also called hydro, geothermal which is naturally occurring heat from the earth, biomass which is organic material from plants and animals; can replenish themselves. Non-renewable energy are resources which are available in limited supplies, usually because they take a long time to replenish. Examples include coal, nuclear, oil and natural gas.

A force is a push or pull upon an object resulting in the object’s interaction with another object. Whenever there is an interaction between two objects, there is a force upon each of the objects. A force can cause an object with mass to change its velocity (e.g. moving from a state of rest), i.e., to accelerate.

Air forms a gaseous blanket over the earth. It is called the atmosphere. The atmosphere is responsible for the weather on earth, and it is an important part of man’s environment. The atmosphere extends to about 900 kilometres from the earth. It is dense, close to the earth’s surface but thins out further away from the earth. Beyond the atmosphere is the outer space. It is vast and without limit and the earth is extremely small in the immensity of the outer space.

Planet Earth is one of the heavenly objects moving endlessly in space. The universe is the infinite space which contains the earth and other heavenly bodies. It is the totality of all the matter, energy and space in which the earth and other extra-terrestrial bodies can be found.The Earth – our home planet is the third planet from the Sun, and the only place we know of so far that’s inhabited by living things. While Earth is the fifth largest planet in the solar system, it is the only world in our solar system with liquid water on the surface. Just slightly larger than nearby Venus, Earth is the biggest of the four planets closest to the Sun, all of which are made of rock and metal.