16. The Universe
Make use of a telescope to observe the sky on a clear night without clouds. (Suggestion for teachers – Arrange such an observation session for all the students of the […]
15. Fun with Magnets
Pins in a pin holder do not fall even when it is held upside down. Why is this so ? While we are shutting the door of a fridge, we […]
14. Light and the Formation of Shadows
The objects or materials which emit light, meaning those which themselves are a source of light, are called luminous objects or materials. The intensity of light is determined by the […]
13. Sound
Which sounds do you hear during the recess in the school ? 2. When there is silence in the classroom, close your eyes and sit quietly. Which sounds in your […]
12. Simple Machines
In the following pictures, certain devices are used to accomplish certain tasks more easily. Name the devices and discuss how they help. Such devices which are used to get more […]
11. Work and Energy
Work Tie a string to an empty box, as shown in the picture. 2. Pull the box through a distance of 10 metres along a straight line. 3. Now fill […]
10. Force and Types of Force
Will a boat move ahead unless pushed with the help of an oar ? 2. Who exerts force to move a bullock-cart forward? 3. What makes the ball move during […]
9. Motion and Types of Motion
In our day-to-day life, we see many moving objects. Moving objects are said to be objects in motion. Discuss which objects in the above pictures are in motion. What differences […]
8. Our Skeletal System and the Skin
Which organ systems do you see in the figure alongside ? In the previous classes, we have learnt about some organ systems, their functions and their locations in our body. […]
7. Nutrition and Diet
Living things take food and water and use them for a variety of purposes such as : Obtaining energy Growth of the body To carry out day to day functions […]