Olympiad Test Level 1: Science and Technology- 2 - Class 1 MCQ

Mouse is an input device as it is used to select data and send command to computer.

Toaster is a small machine used to toast the slices of bread.

There are seven colours in a rainbow, that are violet, indigo, blue, green, yellow, orange, and red.

This picture shows a Washing machine.

Sun is at the center of the Solar System and all planets revolve around the Sun.

Mercury is the closest planet to the Sun. The planet probably received this name because it moves so quickly across space.

Graphite is used to make the writing cores of pencils. Wood (Softwood) Softwoods are coniferous trees, such as pines or spruces.

Newspaper is a means of communication.

The sun is a hot ball of burning gases.

We can play games on a computer send email and watch movies.

Monitor looks like a television. It displays all the information in the form of text and picture.

The Sun gives us heat and light. In the absence of Sun, Earth would be a lifeless ball of ice-coated rock.

Machines make our work easy as they take less time to do it and reduce human efforts.