Science Quiz

People staying near an industrial area complained of skin and eye irritation in the monsoons. This is because

Which of the following is not a “rule of thumb” for deciding whether or not a solution is an acid?

The chloroplasts of a plant cell have a very specialized function. They are the structures where ...

What type of chemical reaction absorbs energy and requires energy for the reaction to occur?

Each body system works with other body systems to perform its function effectively. When different gases are exchanged in the lungs and then transported throughout the body, the systems working together are the ...

In stating the law of reflection, that the angle of incidence equals the angle of reflection it is necessary to understand that this is a law because ...

A periscope works on the principle that light

The image in a plane mirror is not

Rahul stained his shirt with turmeric. When the stain comes in contact with a solution of X the colour of the stain changes to brick red and when it comes in touch with a solution of Y, the colour changes to yellow. X and Y respectively are

Which of A to D completes the equation?
Hydrochloric acid + Sodium hydroxide ==> .......?...... + water

What do we call an electrical switch operated by a magnet?

The pH scale measures

Sunlight produces the seven colours of the spectrum in a pattern called the solar spectrum. To remember the pattern this memory aid is used …

Magnetic lines of force travel from _______ outside the magnet.

Light-producing technologies, such as incandescent and florescent lights, are examples of ...

Reaction of acid with base is known as

Blood is the body's transportation system. The blood is composed of different types of cells which have a very specialized function. The type of blood cells that comprise less than 1% of the blood's volume and defends the body against infection and disease are the ...

In a plane mirror the image formed is laterally inverted that is

An image formed by the iPad projector is

Which of the following is a magnetic material?

Which of the following are examples of an exothermic chemical reaction? Check all that apply.

The wall of the small intestine has many blood vessels. Which of the following statements are correct?
1. All the food goes into the large intestine
2. Digested food is passed into the blood vessels
3. The blood carries the digested food to all parts of the body
4. Digested food is used to generate energy for the body
5. Undigested food remains in the small intestine

Stainless steel is more long lasting than iron because

When the primary colours of light - red, green, and blue - are added together, this colour is produced.

A typical plant cell viewed under a compound light microscope reveals the many different parts that have different functions. The part of the cell which surrounds and protects the contents of the cell is called the ...

To discover the laws of reflection it is necessary to use a ...

A rainbow is formed as a result of the

To enter or leave a cell, substances must pass through

Which will form a salt, water and carbon dioxide when reacted with dilute hydrochloric acid?

Your body needs to have the right conditions under which it can perform its functions properly. To maintain healthy organs and systems, the essential needs are ...