A magical experiment that you can play with your kids at home? So cool!
Parents, can you give your child the perfect answer? Don't be afraid of very deep theories. You might as well do a few simple experiments at home with your children, and you can instantly let your children understand what scientific principles are contained in them!
Tools: a few spoons of salt, a few ice cubes, a glass of water, a string
1. Experimental steps:
Put a few ice cubes in it and let the child try to catch the ice cubes with the rope (the result will definitely not catch)
Sprinkle salt on the ice cubes, put the rope on it, lift both ends of the rope after about a minute, the ice cubes stick to the rope and catch
2. Scientific principles:
Salt can lower the freezing point of ice. Sprinkling salt on the ice surface can make the ice melt a little bit. When part of the ice cubes melt, it will absorb a lot of heat from the surrounding area, so that the surrounding temperature will drop, and the melted water will freeze again. . The rope and the ice cubes are frozen together again.
Tools: Transparent cup with a certain depth, water, 2 or more oranges
1. Experimental steps:
First, let the child guess, whether the peeled orange weighs the weight of the unpeeled orange, and record the child's guess;
Fill the cup with water, let the child put the unpeeled orange into the water, and then let him try to press the floating orange into the water;
Ask your child to take out the oranges, peel them and put them in the water to watch the oranges sink into the water.
Try the experiment again.
2. Scientific principles:
The unpeeled orange has many air bubbles in the orange peel, which is filled with air; the same is also contained in the orange, which wraps the orange like a lifebuoy, so that the overall weight of the orange is lighter than the same volume of water, so it floats on the water.
Tools: Foaming shaving cream, water, clear cup, watercolor paint (different colors), dropper or straw
1. Experimental steps:
Fill the cup about three-quarters full with water, leaving a decent amount of room for the clouds.
Squeeze the shaving foam over the water to make it look like a cloud.
Let sit for 3 minutes to allow the shaving foam to settle on the surface of the water.
2. Scientific principles:
The experiment simulates why clouds in the sky rain. Water represents air, and shaving foam is equivalent to clouds. When the accumulated water in the clouds exceeds the carrying capacity and reaches a saturation state, rainfall will occur.
After reading this, is it still not enough? Then let's play a more exciting one, and teach you and your children how to make "rainbow in water" and "undersea volcano". Quickly click on the video to see what magical events happen?
Tools: Baking soda, citric acid, coloring, bottle of water, plastic cup, stirring rod, syringe, sampling spoon, volcano model.
1. Experimental steps:
First, take a spoonful of citric acid and a spoonful of baking soda into a plastic cup.
Then mix them well with a stir stick and pour into the volcano model
Add a few drops of red pigment to the volcano model.
Take a tube of water in a plastic cup with a syringe.
Finally, slowly pour water into the volcano model.
The volcanic and lava eruption experiment intuitively simulates the state of volcanic eruption. Parents no longer need to come up with a lot of complicated theories to explain to their children. More in the vivid experimental demonstrations, from the simulated volcanic eruption state, just tell the story. It can plant a small scientific bud in the hearts of children and carry out scientific enlightenment.
When children see the magical image in the future, they can start to restore the experiment, read the knowledge in the book, and understand the scientific truth contained in it. This is the best educational state pursued by parents—learning with joy.
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