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Amazing science tricks for Kids with common household items

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Amazing science tricks for Kids with common household items:

# Activity 1: Pen ink experiment

How to do it: Take some water in a dish and put a drop of pen ink by blowing from the other side of the refill and then see the magic, it makes a beautiful flower as it can be seen in the picture.

#Activity 2: Fire has no shadow

How to do it: Take a candle and light it up and then keep it in the dark room in front of the wall. Then turn on the touch in the direction of the candle and you will observe that there is a shadow of a candle on the wall but not of fire because fire itself is a source of light and light has no shadow.

# Activity 3: Learn the concept of convention by using candles.

How to do it: Take a candle and light it up. Now, keep your one hand above the flame and one hand on the side of the flame (Please be cautious while doing). Do your hands feel equally hot? No, it is because the air towards the top gets heated by convection. So, due to the convention the hand over the flame feels hot. And on the other side, however, there is no convection; the air does not feel as hot as at the top.

# Activity 4: Learn the pH by using China rose.

How to do it: Collect some China rose petals and place them in a glass bowl. Now, add some warm water to the bowl. Keep the mixture for at least 5 hours till water becomes colored. Now distribute the colored water in three equal glasses, as the colored water will be acting as an indicator. Now take some products that can be easily found in the household like shampoo, lemon juice, vinegar, sugar, salt etc (For solid products make a solution first) in separate bowls. Take a dropper, add five drops of the indicator (China rose water solution) to each solution that you prepared from household stuff.

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Now check the effect of the indicator (China rose water solution) on acidic, basic and neutral solutions? The China rose indicator will turn acidic and the color will change from pink to dark pink (magenta) and basic solutions will turn to the green color.                                  

# Activity 5: Blowing into the bottle

How to do it: Take an empty bottle. Now, take a small piece of paper and crumple it into a size of a very tiny ball smaller than the mouth of an empty bottle which you will be taking. Now, hold the empty bottle on its side and then place the paper ball very gently just inside the mouth of the ball. Now try to blow air on the ball so that it goes inside the bottle. You will not be able to do it because when we blow into the mouth of the bottle, the air near the mouth has higher speed which decreases the pressure there. Also, the pressure of air inside the bottle is higher than that which is near the mouth. So, the air which is present inside the bottle pushes the ball out.

# Activity 6: DIY Lungs

How to do it: Take a wide plastic bottle and remove the bottom of the bottle carefully. Get a Y-shaped plastic tube. Now, make a hole in the lid so that the tube can pass through it. To the forked end of the tube tie a deflated balloon on each side of the tube as shown in the figure. Now cap the bottle. Seal it to make it airtight. To the open base of the bottle tie a thin rubber or a deflated balloon using a large rubber band.

To understand the expansion of the lungs, pull the rubber sheet from the base in the downward direction and watch the balloons as the air gets filled up in the balloons. Next, push the rubber/plastic sheet up and observe the balloons as the air inside the lungs gets exhaled.

# Activity 7: Growing a whole new plant from a plant part itself.

How to do it: Take a fresh potato. Observe the potato and you will find some pale yellow bulb-like structure over the potato. The small bulb-like structure is called a bud(s). These are also called “eyes”. Now, cut the potato into small portions, each with an eye and bury them in the soil. Water it regularly for a few days and observe the progress. What do you find? Yes, my friend you got a new potato friend inside the soil. Have a good meal.

The same goes with ginger as they have eyes on their surface as well.

Also, the same thing happens with the Bryophyllum (sprout leaf plant), as they have buds in the margins of the leaves. If a leaf of Bryophyllum falls on a moist soil, each bud of the Bryophyllum leaf is going to give rise to a new plant.

# Activity 8: Let’s learn the concept of Reflection by using sun rays

How to do it: Take a mirror and stand at the position where the sunlight is. Now position that mirror in a manner that sun rays are falling on it and then adjust the mirror at such an angle that the sun rays can be reflected from the mirror and can be seen on the wall of the balcony where sunlight cannot reach. There you can see the reflection of the sun rays.

# Activity 9: Playing with spherical mirrors

How to do it: Take a stainless-steel spoon. Now, try to look in outer side of spoon and bring it closer to you. You can see your image in it right? But what’s different here is now, look at your image using the inner side of the spoon. This time your image will be erect and larger in size. If you try to take the spoon away from your face, you may see your image inverted.

The science behind this is the concept of concave and convex mirrors. The inner surface of a spoon acts like a concave mirror, while the outer surface acts like a convex mirror.

# Activity 10: Let’s play with lenses

How to do it: Take a magnifying glass. Place it in the path of the sun rays. Place a sheet of paper underneath. Adjust the distance between the lens and the paper till you get a bright spot (sunlight) on the paper. Hold the lens and the paper in this position for a few minutes and here the magic of science occurs the paper begins to burn.

This happens because in magnifying glass we use convex lenses which take all the beam of rays from one side of it and combine it together and focus on the object as one.

# Activity 11: Sunlight white or colored

How to do it: Take a cardboard and cut it into a circular disc of about 10 cm diameter. Carefully, divide this disc into seven segments like a rainbow.. Neatly, make a small hole at the center of the disc. Fix the disc loosely on the tip of a stick.  After placing the disc on the stick, ensure that the disc rotates freely. Now, rotate the disc in the daylight (sunlight). When you rotate the disc in a speedy manner, the colors get mixed together and the disc appears to be white.

# Activity 12: Air is essential for burning.

How to do it: Take a candle and light it up and fix it on some wooden blocks over a table.

Case A: Put a glass jar over the candle and rest it on a wooden blocks in such a way that air can continuously enter in the jar. Observe what happens to the flame.

Case B: Now remove the blocks and let the jar rest on the table. Observe the flame.

Case C: Finally, put a glass plate over the jar. Watch the flame again.

What happened in these three cases?

In case (a) the candle burns freely as air can enter the jar from below. In the case of b, when air does not enter the jar from below, the flame flickers and produces smoke. In case (c), the flame finally goes off because the air is not available inside the jar.

With the help of this experiment, we learned that for combustion, air is necessary.

# Activity 13: Ruler and Electrostatic force

How to do it: Take a ruler and a piece of paper. Tear the paper into small pieces. Now rub the ruler on your hair for 30 – 40 seconds and then place it over the paper pieces. Adjust the distance between the ruler and paper pieces. And here the magic of science happens as you take the ruler closer to the paper pieces they start to jump towards the ruler as they get attracted by the charge on the ruler.

A ruler is said to have acquired electrostatic charge after it has been rubbed with hair. Such a ruler is an example of a charged body. So, here paper pieces are uncharged which get attracted towards the ruler.




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