What is water level?
Simple Science
by
2y ago
 Put a plastic or glass tube in a glass full of water. The level of water in the glass tube rises higher than the level of water in the glass. Why? To study its cause thoroughly, take three or four glasses or plastic tubes of different diameters and put them in a glass of water. You will be surprised to see that in all the tubes, the level of water has risen to different heights but the water in the glass is still quite steady and still. The water level in the tube of the least diameter is the highest whereas it is lowest in the tube of the maximum diameter. Why does it happen ..read more
Visit website
Water acts like a thin film
Simple Science
by
2y ago
 Some very small insects can be seen moving with great ease on the surface of water. How are they able to move on the surface of a liquid? Place a big bowl on a table and fill it with water. When the water in it becomes still, place a needle horizontally on the water level, very carefully and watch the happening. If the needle has been placed with due caution, you will be surprised to see that it keeps on floating on the water surface. If it sinks, do not get disheartened. Try again. Now you can do one more thing. This time take a piece of tissue paper, float it on the water surface ..read more
Visit website
What is coalescing?
Simple Science
by
2y ago
In extremely cold regions, the water in rivers, ponds, etc. gets frozen and changes into ice. On this ice, how is it possible for the people to slide with the help of a special type of footwear known as ice-skates? Can you explain the reason behind it? Take a 50cm long piece of metallic wire (it can be a fuse wire or any other wire of lesser gauge but quite sturdy). Tie one pencil each on both the ends. These will work as handles for you and will help you, in keeping the wire taut. Now take a small wooden plank and place on it a big piece of ice. Place the wire on the ice-piece in such ..read more
Visit website
Natural process for evaporation and condensation
Simple Science
by
2y ago
 During rains, a lot of water falls from the sky. Sometimes, the rain continues for hours. Where does so much water come from? For this experiment, it would be better if you could procure one aluminium kettle for boiling the water. Otherwise, any vessel can serve the purpose. Cover it with a lid in such a way that there remains a little gap between the lid and the vessel for the exit of the steam. Now boil the water till the steam starts coming out. Take some pieces of ice or chilled water in a pan with a handle. Now see from where the rain water comes in the sky. Hold the pan at some ..read more
Visit website
What is condensation?
Simple Science
by
2y ago
 When you pour some cold (chilled) drink into a tumbler, you will find some droplets shining on the outer side of the tumbler, however, carefully you pour it. Do you know why it so happens? Take a tumbler and fill half of it with water. Now put some ice-cubes into it and wait for sometime. The ice will melt and start cooling the water as well as the tumbler. After a while, you will find that the outer wall of the tumbler—so far quite clean—has now some shining droplets of water on it. Where have these droplets come from on the outer wall of the tumbler? Also, you will notice that the w ..read more
Visit website
Why ice floats on water?
Simple Science
by
3y ago
Cold water is heavy but ice, which is another form of cold water, floats on water despite being a solid—how does it happen? As water gets colder, its volume decreases and it becomes heavier but this process continues only upto a certain temperature, which is 4°C. This is the temperature at which the density of water is maximum and the volume is minimum. When water takes the form of ice, its volume increases, i.e., it covers more space in this form. The mass, however, remains unchanged when water is converted into ice. Neither anything added nor taken away from it. So the mass remains unchan ..read more
Visit website
Why we feel cold when we are wet?
Simple Science
by
3y ago
Can you tell why we feel colder when air touches our body soon after taking a bath? Take a small piece of cotton. Dip it in water and rub it gently over your palm. It will become wet. First of all, you will feel its wetness only, but after a few seconds, you will experience a cool sensation on that part of your hand. Do you know the reason? You already know that when evaporation takes place, the liquid derives heat from everything that comes in its contact. So it must be quite clear that the heat is being absorbed from that part of your hand where the evaporation is taking place. The result ..read more
Visit website
What is the effect of strong wind and heat on evaporation?
Simple Science
by
3y ago
 To see the effect of the strong wind on evaporation, conduct a small experiment. Moisten both sides ofyour slate with a wet cloth. Now continue to blow air from your mouth on one side of it, or, as an alterative, keep this side in front of a moving fan. Which side do you think would get dry first? The side exposed to the continuous draught of air or the other one? Your answer will be correct if you say that the side exposed to the fan will dry first. Strong wind or draught of air blows off the small particles of water or molecules—as they are called—and paves the way for the other mol ..read more
Visit website
Why wind blows and how?
Simple Science
by
3y ago
Everyone knows that the wind blows. But how? What is the reason of its motion?  To do this experiment, first of all, make a wind-wheel. Take a sheet of paper of the size, 30 cm x 30 cm and draw two lines joining the corners diagonally. Taking that point as centre where these two lines intersect, draw a circle of 10 cm radius. Then take a pair of scissors and cut the portion of the 4 lines lying outside the circle. Now bring the tip of each of the corners to the centre of the circle and stick them there. Pivot the wheel on a pin stuck into a piece of wood. Your wind-wheel is now ready to r ..read more
Visit website
What is evaporation?
Simple Science
by
3y ago
To understand this, do a minor and the most ordinary type of experiment. Take three identical saucers and keep them at a place, quite close to one another. Now pour one spoonful of water in one saucer, two spoonfuls in the second and three spoonfuls in the third one, and continue observing them at frequent intervals. After sometime, you will observe that the saucer having one spoonful of water gets emptied first of all, followed by the second saucer with two spoonfuls of water and lastly, the third saucer having three spoonfuls of water. The process which makes the water slowly turn into va ..read more
Visit website

Follow Simple Science on FeedSpot

Continue with Google
Continue with Apple
OR