We’ve collected several scientific experiments that will amaze children. You will be forced to repeat the experience again and again. At the same time they will learn a lot of useful and interesting things.
Experience № 1. Ball and orange
You`ll need: one orange, inflated balloons (as many as you wish).
Experience: Cut a piece of orange peel, as if you were cleaning the orange to eat. Push down on the peel, peel juice drizzle on an inflated balloon. The ball will burst.
Explanation: Orange zest a lot of a substance such as limonene. It actively dissolves the rubber, so thin balloon can not resist it.
Experience № 2. An egg in a bottle
You`ll need: a hard-boiled and shelled medium-sized egg, glass bottle of juice with a wide neck, a strip of paper, matches or lighter, vegetable oil. To make an experience successful, the bottle should be slightly less than eggs.
Experience: lubricate the bottle with vegetable oil. Light the paper and quickly put it in the bottle. Immediately thereafter, the bottle must be covered with an egg. When the paper is goes out, the egg will be in the bottle.
Explanation: when the air in the bottle due to the fire heats up, it expands and comes out of the air, and when the flame goes out, the air begins to cool and contract. As a result, the bottle creates a low pressure so that the pressure itself outside “pushes” egg in a bottle.
Experience № 3. Ball and funnel
You need: a funnel and a ping-pong ball.
Experience: flip the widest part of the funnel down, put the ball in the cup and keep it with your finger. Then start to blow into the narrow end of the funnel and stop supporting the ball with your finger, not stopping to blow. The ball must remain inside.
Explanation: The faster the air passes the ball, the less pressure it exerts on the ball. The air pressure between the walls of the funnel and the ball is much smaller than outside, so while you blow, the ball will remain in the funnel, even if you turn it upright. The same experience can be adapted with the vacuum cleaner.
Experience № 4. Magic Candle
You`ll need: one candle and the lighter.
Experience: light a candle and after some time extinguish it. When the candle goes out, the smoke will rise from the wick. If expose fire to smoke, the candle lights again.
Explanation: The smoke that rises from the wick comprises the vapour of wax, which is easy to light up. Thanks these vapour the light reaches the wick, as shown in the picture.
Experience № 5. Self-inflating balloons
You`ll need: a balloon, soda, bottle, vinegar.
Experience: Sprinkle baking soda into a balloon, and pour the vinegar into the bottle. Put the balloon on the neck of the bottle, and then turn it so that the contents spilled from the ball into vinegar and watch.
Explanation: The fact is that when you add baking soda to vinegar (quenching soda), you produce carbon dioxide, which inflates the balloon.
The more detailed information how to iflate the balloon with baking soda and vinegar is here
Experience № 6. Glowing water
This experience will require some training and additional purchases, but it will look especially impressive.
You need one tumbler, detergent solution (20 ml), a three-percent hydrogen peroxide (10 ml), a three percent solution of luminol (5 ml), a few crystals of potassium permanganate.
Experience: Pour the detergent solution into a glass, a solution of hydrogen peroxide and luminol. Separately pound a few crystals of potassium permanganate and also send it in a glass. When you try to stir the mixture, it will foam and sparkle beautifully.
Explanation: luminol glows when reacted with hydrogen peroxide.
No Replies to "6 simple science experiments for children's parties. How to entertain the children?"