Admission Class Seven Test

Write the answers of the following questions.
What is cell? 
All living organisms are made of cells. A cell is the basic unit of structure and function of all living organisms. Plants and animals are made of trillion of cells. Some living organisms consist of only one cell.
What is photosynthesis?
Plants make their food using carbon dioxide and water in the presence of sunlight and chlorophyll. This process is called photosynthesis.

Chose the correct option.
c b
a b
c a
a c
c c

Write the answer of the following questions in one word.
The process in which energy produced in living things is called?  Respiration
The simplest form of matter is called? Element

The solution in which water is solvent called?  Aqueous solution

When parallel light rays hit a rough surface, all the rays are reflected at different angles. What is it called? Diffused reflection

Sound is produced when matter move back and forth very quickly.
What a back and forth movement is called?   Vibration

The system consists of nose, windpipe and lungs. We breathe through this organ. What is it called? Respiratory system

Which gas is used to preserve freshness of foods?  Nitrogen

The fact that energy cannot be created or destroyed. 
Law of Conservation of energy

The process by which separation of coloured chemicals takes place  Paper chromatography

The hole in the middle of the iris is known as  retina