The roly-poly toy is a very interesting small toy. In fact, a beautiful roly-poly can be simply made with an egg. Come on and teach your baby how to make a roly-poly toy with an egg.
I. Materials
A little sand or rice, a bowl, chopsticks, one egg (white-shelled if possible because the white background better sets off the picture), color pens, a cone (or a needle), a roll of double-sided tape, and a piece of colored paper.
II. How to make an egg roly-poly
1. Choose an egg, preferably a white-shelled one because the white background better sets off the pattern. Use a cone (or a needle or chopsticks) to make a small hole at the top end of the smaller end of the egg. Note that the eggshell is very brittle, so don't use too much force when making the hole.
2. Turn the small hole downward and pour the egg white and yolk into the bowl. After pouring, pour water into the egg to wash it out.
3. Carefully fill the egg with sand (or rice) until the larger end of the egg can stand upright on the table. Alternatively, use a lighter to light a candle and let the melted wax flow in. This process takes about 15 minutes;
4. Cut a fan shape from the colored paper. Use double-sided tape to stick the fan shape into a clown hat. Of course, you can also make other shaped hats or headwear. You can also use yarn for the egg's hair. If the roly-poly is a girl, you can also use red and pink yarn to make headwear;
5. "Wear" the clown hat and hair on the small end of the egg (the end with the hole), and stick it tightly. The hat should completely cover the small hole.
6. Use color pens to draw beautiful big eyes and a small nose on the eggshell, and then use a red pen to draw a small mouth for the roly-poly. Thus, a beautiful and lovely roly-poly is done.
III. Introduction to the principle of the roly-poly
Objects that are lighter on top and heavier on bottom are more stable, which means the lower the center of gravity, the more stable it is. When the roly-poly is balanced in an upright state, the distance between the center of gravity and the contact point is minimal, i.e., the center of gravity is lowest. After deviating from the balanced position, the center of gravity always rises. Therefore, this state of balance is stable balance. So no matter how the roly-poly sways, it will not fall over. In life, to increase the stability of objects, we often add weight to the bottom, such as the base of a fan, microphone stands, public bus stop signs, etc.
Teaching your baby how to make a roly-poly toy with an egg is very fun. No matter how you shake it, it can always stand up again. Everyone come and try it!