_______ is a liquid substance that circulates in the body, taking food materials round the parts of the body.

__________ are substances which are capable of changing blue litmus paper to red.

How many types of rocks do we have?

Another name for red blood cell is _______.

_________ protect the body against diseases

________ are tiny cells produced in the bone marrow.

Soluble bases are called ________

_________ cab be prepared by missing palm oil and a solution of sodium hydroxide.

There are ______ classification of bases.

Acids have a ________ taste .

_________ are generally heavy.

_________ and ________ are light and can float on water.

______ are heavy materials and they break easily.

________ can be used for producing many things.

The process of keeping things in good condition is called _______.

_________ can be used in production of drugs.

Uses of wood includes all of the followings except _________.

_________ is used in making raincoats, shoes and hand gloves.

Blood is a ________

______ is a disorder that arises as a result of a shortage in the red blood cells.

A disease that arises due to multiplication of plasmodia in the red blood cells of man is called ________.

__________ is the muscular organ that pumps blood round the body.

________ are tubes through which blood moves round the body.

_______ is an important process of all living organisms.

The union of the male and female sex cell is called ________.

__________ produces sperm.

________ carries the egg cells to the uterus.

_______ is a colourless, odourless and tasteless mixture of gases.

________ is defined as the force exerted over a unit surface area.

Bases have a _______ taste.

Rocks can be used for ________.

An object made in the form of an umbrella used by air passengers is called_______.

Metals ,woods, plastics, ceramics are examples of _______,

Obeche and mahogany are examples of ______

How many types of acids do we have?